diff --git a/docs/js/README.md b/docs/js/README.md
index 1da9c1c..4fe1507 100644
--- a/docs/js/README.md
+++ b/docs/js/README.md
@@ -21,7 +21,7 @@ This repository is a comprehensive toolkit designed to streamline and optimize t
 
 - **[Configuration and Management](https://github.com/1inch/solidity-utils/blob/master/docs/js/modules/hardhat_setup.md)**: Tools for setting up Hardhat network configurations and managing project settings efficiently.
 
-- **[Solidity Contracts and Libraries](https://github.com/1inch/solidity-utils/blob/master/docs/contracts/SUMMARY.md)**: Frequently used smart contracts, libraries, and interfaces aimed at providing reusable code for common use cases, alongside optimizations to improve contract efficiency.
+- **[Solidity Contracts and Libraries](https://github.com/1inch/solidity-utils/blob/master/docs/SUMMARY.md)**: Frequently used smart contracts, libraries, and interfaces aimed at providing reusable code for common use cases, alongside optimizations to improve contract efficiency.
 
 ## Contributing
 
diff --git a/docs/js/classes/hardhat_setup.Networks.md b/docs/js/classes/hardhat_setup.Networks.md
index 77c22f6..2598db4 100644
--- a/docs/js/classes/hardhat_setup.Networks.md
+++ b/docs/js/classes/hardhat_setup.Networks.md
@@ -47,7 +47,7 @@ See the [README](https://github.com/1inch/solidity-utils/tree/master/hardhat-set
 
 #### Defined in
 
-[hardhat-setup/networks.ts:75](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L75)
+[hardhat-setup/networks.ts:75](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L75)
 
 ## Properties
 
@@ -57,7 +57,7 @@ See the [README](https://github.com/1inch/solidity-utils/tree/master/hardhat-set
 
 #### Defined in
 
-[hardhat-setup/networks.ts:73](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L73)
+[hardhat-setup/networks.ts:73](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L73)
 
 ___
 
@@ -67,7 +67,7 @@ ___
 
 #### Defined in
 
-[hardhat-setup/networks.ts:72](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L72)
+[hardhat-setup/networks.ts:72](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L72)
 
 ## Methods
 
@@ -93,7 +93,7 @@ ___
 
 #### Defined in
 
-[hardhat-setup/networks.ts:96](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L96)
+[hardhat-setup/networks.ts:96](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L96)
 
 ___
 
@@ -112,7 +112,7 @@ ___
 
 #### Defined in
 
-[hardhat-setup/networks.ts:139](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L139)
+[hardhat-setup/networks.ts:139](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L139)
 
 ___
 
@@ -139,7 +139,7 @@ ___
 
 #### Defined in
 
-[hardhat-setup/networks.ts:113](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L113)
+[hardhat-setup/networks.ts:113](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L113)
 
 ___
 
@@ -165,4 +165,4 @@ ___
 
 #### Defined in
 
-[hardhat-setup/networks.ts:120](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L120)
+[hardhat-setup/networks.ts:120](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L120)
diff --git a/docs/js/enums/src.NonceType.md b/docs/js/enums/src.NonceType.md
new file mode 100644
index 0000000..75c0584
--- /dev/null
+++ b/docs/js/enums/src.NonceType.md
@@ -0,0 +1,45 @@
+[@1inch/solidity-utils](../README.md) / [Modules](../modules.md) / [src](../modules/src.md) / NonceType
+
+# Enumeration: NonceType
+
+[src](../modules/src.md).NonceType
+
+Enum defining types of nonces.
+
+## Table of contents
+
+### Enumeration Members
+
+- [Account](src.NonceType.md#account)
+- [Selector](src.NonceType.md#selector)
+- [Unique](src.NonceType.md#unique)
+
+## Enumeration Members
+
+### Account
+
+• **Account** = ``0``
+
+#### Defined in
+
+[src/bySig.ts:10](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L10)
+
+___
+
+### Selector
+
+• **Selector** = ``1``
+
+#### Defined in
+
+[src/bySig.ts:11](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L11)
+
+___
+
+### Unique
+
+• **Unique** = ``2``
+
+#### Defined in
+
+[src/bySig.ts:12](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L12)
diff --git a/docs/js/interfaces/src.DeployContractOptions.md b/docs/js/interfaces/src.DeployContractOptions.md
index c6acf6d..469a18c 100644
--- a/docs/js/interfaces/src.DeployContractOptions.md
+++ b/docs/js/interfaces/src.DeployContractOptions.md
@@ -81,7 +81,7 @@ Number of confirmations to wait based on network. Ussually it's need for waiting
 
 #### Defined in
 
-[src/utils.ts:29](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L29)
+[src/utils.ts:29](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L29)
 
 ___
 
@@ -91,7 +91,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:27](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L27)
+[src/utils.ts:27](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L27)
 
 ___
 
@@ -101,7 +101,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:31](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L31)
+[src/utils.ts:31](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L31)
 
 ___
 
@@ -111,7 +111,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:32](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L32)
+[src/utils.ts:32](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L32)
 
 ___
 
@@ -127,7 +127,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:30](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L30)
+[src/utils.ts:30](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L30)
 
 ___
 
@@ -137,7 +137,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:35](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L35)
+[src/utils.ts:35](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L35)
 
 ___
 
@@ -147,7 +147,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:38](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L38)
+[src/utils.ts:38](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L38)
 
 ___
 
@@ -157,7 +157,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:37](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L37)
+[src/utils.ts:37](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L37)
 
 ___
 
@@ -167,7 +167,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:36](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L36)
+[src/utils.ts:36](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L36)
 
 ___
 
@@ -177,7 +177,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:34](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L34)
+[src/utils.ts:34](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L34)
 
 ___
 
@@ -187,7 +187,7 @@ ___
 
 #### Defined in
 
-[src/utils.ts:33](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L33)
+[src/utils.ts:33](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L33)
 
 ___
 
@@ -197,4 +197,4 @@ ___
 
 #### Defined in
 
-[src/utils.ts:39](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L39)
+[src/utils.ts:39](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L39)
diff --git a/docs/js/interfaces/src.SignedCallStruct.md b/docs/js/interfaces/src.SignedCallStruct.md
new file mode 100644
index 0000000..5c4843c
--- /dev/null
+++ b/docs/js/interfaces/src.SignedCallStruct.md
@@ -0,0 +1,32 @@
+[@1inch/solidity-utils](../README.md) / [Modules](../modules.md) / [src](../modules/src.md) / SignedCallStruct
+
+# Interface: SignedCallStruct
+
+[src](../modules/src.md).SignedCallStruct
+
+## Table of contents
+
+### Properties
+
+- [data](src.SignedCallStruct.md#data)
+- [traits](src.SignedCallStruct.md#traits)
+
+## Properties
+
+### data
+
+• **data**: `string`
+
+#### Defined in
+
+[src/bySig.ts:51](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L51)
+
+___
+
+### traits
+
+• **traits**: `bigint`
+
+#### Defined in
+
+[src/bySig.ts:50](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L50)
diff --git a/docs/js/modules/hardhat_setup.md b/docs/js/modules/hardhat_setup.md
index 652fe0c..8f1a013 100644
--- a/docs/js/modules/hardhat_setup.md
+++ b/docs/js/modules/hardhat_setup.md
@@ -45,7 +45,7 @@ Array of custom blockchain network configurations.
 
 #### Defined in
 
-[hardhat-setup/networks.ts:11](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L11)
+[hardhat-setup/networks.ts:11](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L11)
 
 ___
 
@@ -65,7 +65,7 @@ A helper method to get the network name from the command line arguments.
 
 #### Defined in
 
-[hardhat-setup/networks.ts:21](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L21)
+[hardhat-setup/networks.ts:21](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L21)
 
 ___
 
@@ -96,7 +96,7 @@ A helper method to parse RPC configuration strings. Checks that the string is in
 
 #### Defined in
 
-[hardhat-setup/networks.ts:32](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L32)
+[hardhat-setup/networks.ts:32](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L32)
 
 ___
 
@@ -121,4 +121,4 @@ A helper method to reset the Hardhat network to the local network or to a fork.
 
 #### Defined in
 
-[hardhat-setup/networks.ts:46](https://github.com/1inch/solidity-utils/blob/cdb7d95/hardhat-setup/networks.ts#L46)
+[hardhat-setup/networks.ts:46](https://github.com/1inch/solidity-utils/blob/dc69769/hardhat-setup/networks.ts#L46)
diff --git a/docs/js/modules/src.md b/docs/js/modules/src.md
index fba0a34..bcb2715 100644
--- a/docs/js/modules/src.md
+++ b/docs/js/modules/src.md
@@ -4,9 +4,14 @@
 
 ## Table of contents
 
+### Enumerations
+
+- [NonceType](../enums/src.NonceType.md)
+
 ### Interfaces
 
 - [DeployContractOptions](../interfaces/src.DeployContractOptions.md)
+- [SignedCallStruct](../interfaces/src.SignedCallStruct.md)
 
 ### Type Aliases
 
@@ -27,6 +32,7 @@
 ### Functions
 
 - [assertRoughlyEqualValues](src.md#assertroughlyequalvalues)
+- [buildBySigTraits](src.md#buildbysigtraits)
 - [buildData](src.md#builddata)
 - [buildDataLikeDai](src.md#builddatalikedai)
 - [compressPermit](src.md#compresspermit)
@@ -45,9 +51,11 @@
 - [getPermit2](src.md#getpermit2)
 - [getPermitLikeDai](src.md#getpermitlikedai)
 - [getPermitLikeUSDC](src.md#getpermitlikeusdc)
+- [hashBySig](src.md#hashbysig)
 - [permit2Contract](src.md#permit2contract)
 - [profileEVM](src.md#profileevm)
 - [signMessage](src.md#signmessage)
+- [signSignedCall](src.md#signsignedcall)
 - [timeIncreaseTo](src.md#timeincreaseto)
 - [trackReceivedTokenAndTx](src.md#trackreceivedtokenandtx)
 - [trim0x](src.md#trim0x)
@@ -61,7 +69,7 @@
 
 #### Defined in
 
-[src/permit.ts:30](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L30)
+[src/permit.ts:30](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L30)
 
 ___
 
@@ -71,7 +79,7 @@ ___
 
 #### Defined in
 
-[src/permit.ts:15](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L15)
+[src/permit.ts:15](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L15)
 
 ___
 
@@ -81,7 +89,7 @@ ___
 
 #### Defined in
 
-[src/permit.ts:22](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L22)
+[src/permit.ts:22](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L22)
 
 ___
 
@@ -91,7 +99,7 @@ ___
 
 #### Defined in
 
-[src/permit.ts:11](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L11)
+[src/permit.ts:11](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L11)
 
 ___
 
@@ -116,7 +124,7 @@ ___
 
 #### Defined in
 
-[src/prelude.ts:4](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/prelude.ts#L4)
+[src/prelude.ts:4](https://github.com/1inch/solidity-utils/blob/dc69769/src/prelude.ts#L4)
 
 ___
 
@@ -126,7 +134,7 @@ ___
 
 #### Defined in
 
-[src/permit.ts:12](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L12)
+[src/permit.ts:12](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L12)
 
 ___
 
@@ -136,7 +144,96 @@ ___
 
 #### Defined in
 
-[src/permit.ts:13](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L13)
+[src/permit.ts:13](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L13)
+
+___
+
+### buildBySigTraits
+
+▸ **buildBySigTraits**(`«destructured»?`): `bigint`
+
+Builds traits for {bySig} contract by combining params.
+
+#### Parameters
+
+| Name | Type | Default value |
+| :------ | :------ | :------ |
+| `«destructured»` | `Object` | `{}` |
+| › `deadline` | `undefined` \| `number` | `0` |
+| › `nonce` | `undefined` \| `number` | `0` |
+| › `nonceType` | `undefined` \| [`NonceType`](../enums/src.NonceType.md) | `NonceType.Account` |
+| › `relayer` | `undefined` \| `string` | `undefined` |
+
+#### Returns
+
+`bigint`
+
+A bigint representing the combined traits.
+
+**`Throws`**
+
+Error if provided with invalid parameters.
+
+#### Defined in
+
+[src/bySig.ts:24](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L24)
+
+___
+
+### hashBySig
+
+▸ **hashBySig**(`name`, `version`, `chainId`, `verifyingContract`, `sig`): `string`
+
+Computes the EIP-712 hash for a given bySig call.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `name` | `string` | The user readable name of EIP-712 domain. |
+| `version` | `string` | The version of the EIP-712 domain. |
+| `chainId` | `bigint` | The unique identifier for the blockchain network. |
+| `verifyingContract` | `string` | The Ethereum address of the contract that will verify the signature. This ties the signature to a specific contract. |
+| `sig` | [`SignedCallStruct`](../interfaces/src.SignedCallStruct.md) | The data to be signed. |
+
+#### Returns
+
+`string`
+
+The EIP-712 hash of the fully encoded data.
+
+#### Defined in
+
+[src/bySig.ts:63](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L63)
+
+___
+
+### signSignedCall
+
+▸ **signSignedCall**(`name`, `version`, `chainId`, `verifyingContract`, `signer`, `signedCall`): `Promise`\<`string`\>
+
+Signs a given data for {bySig} contract call using EIP-712 standard.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `name` | `string` | The user readable name of EIP-712 domain. |
+| `version` | `string` | The version of the EIP-712 domain. |
+| `chainId` | `string` \| `bigint` | The unique identifier for the blockchain network. |
+| `verifyingContract` | `string` | The Ethereum address of the contract that will verify the signature. This ties the signature to a specific contract. |
+| `signer` | `Wallet` \| `HardhatEthersSigner` | The wallet or signer to sign the data. |
+| `signedCall` | [`SignedCallStruct`](../interfaces/src.SignedCallStruct.md) | The call data to be signed, consisting of traits and data. |
+
+#### Returns
+
+`Promise`\<`string`\>
+
+A Promise that resolves to the signature.
+
+#### Defined in
+
+[src/bySig.ts:84](https://github.com/1inch/solidity-utils/blob/dc69769/src/bySig.ts#L84)
 
 ## expect
 
@@ -168,7 +265,7 @@ or if the actual value deviates from the expected by more than the specified rel
 
 #### Defined in
 
-[src/expect.ts:15](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/expect.ts#L15)
+[src/expect.ts:15](https://github.com/1inch/solidity-utils/blob/dc69769/src/expect.ts#L15)
 
 ## permit
 
@@ -216,7 +313,7 @@ Constructs structured data for EIP-2612 permit function, including types, domain
 
 #### Defined in
 
-[src/permit.ts:97](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L97)
+[src/permit.ts:97](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L97)
 
 ___
 
@@ -266,7 +363,7 @@ Prepares structured data similar to the Dai permit function, including types, do
 
 #### Defined in
 
-[src/permit.ts:129](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L129)
+[src/permit.ts:129](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L129)
 
 ___
 
@@ -295,7 +392,7 @@ Compresses a permit function call to a shorter format based on its type.
 
 #### Defined in
 
-[src/permit.ts:352](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L352)
+[src/permit.ts:352](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L352)
 
 ___
 
@@ -321,7 +418,7 @@ Trims the method selector from transaction data, removing the first 8 characters
 
 #### Defined in
 
-[src/permit.ts:58](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L58)
+[src/permit.ts:58](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L58)
 
 ___
 
@@ -350,7 +447,7 @@ Decompresses a compressed permit function call back to its original full format.
 
 #### Defined in
 
-[src/permit.ts:401](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L401)
+[src/permit.ts:401](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L401)
 
 ___
 
@@ -379,7 +476,7 @@ Generates a domain separator for EIP-712 structured data using the provided para
 
 #### Defined in
 
-[src/permit.ts:72](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L72)
+[src/permit.ts:72](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L72)
 
 ___
 
@@ -412,7 +509,7 @@ Generates a permit signature for ERC20 tokens with EIP-2612 standard.
 
 #### Defined in
 
-[src/permit.ts:172](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L172)
+[src/permit.ts:172](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L172)
 
 ___
 
@@ -445,7 +542,7 @@ Creates a permit for spending tokens on Permit2 standard contracts.
 
 #### Defined in
 
-[src/permit.ts:214](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L214)
+[src/permit.ts:214](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L214)
 
 ___
 
@@ -478,7 +575,7 @@ Generates a Dai-like permit signature for tokens.
 
 #### Defined in
 
-[src/permit.ts:256](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L256)
+[src/permit.ts:256](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L256)
 
 ___
 
@@ -511,7 +608,7 @@ Generates a ERC-7597 permit signature for tokens.
 
 #### Defined in
 
-[src/permit.ts:301](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L301)
+[src/permit.ts:301](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L301)
 
 ___
 
@@ -531,7 +628,7 @@ Ensures contract code is set for a given address and returns a contract instance
 
 #### Defined in
 
-[src/permit.ts:152](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L152)
+[src/permit.ts:152](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L152)
 
 ___
 
@@ -557,7 +654,7 @@ Removes the '0x' prefix from a string. If no '0x' prefix is found, returns the o
 
 #### Defined in
 
-[src/permit.ts:44](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L44)
+[src/permit.ts:44](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L44)
 
 ___
 
@@ -584,7 +681,7 @@ Concatenates a target address with data, trimming the '0x' prefix from the data.
 
 #### Defined in
 
-[src/permit.ts:339](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/permit.ts#L339)
+[src/permit.ts:339](https://github.com/1inch/solidity-utils/blob/dc69769/src/permit.ts#L339)
 
 ## prelude
 
@@ -610,7 +707,7 @@ Converts an Ether amount represented as a string into its Wei equivalent as a bi
 
 #### Defined in
 
-[src/prelude.ts:26](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/prelude.ts#L26)
+[src/prelude.ts:26](https://github.com/1inch/solidity-utils/blob/dc69769/src/prelude.ts#L26)
 
 ## profileEVM
 
@@ -632,7 +729,7 @@ Default configuration options for the `gasspectEVM` function to analyze gas usag
 
 #### Defined in
 
-[src/profileEVM.ts:11](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/profileEVM.ts#L11)
+[src/profileEVM.ts:11](https://github.com/1inch/solidity-utils/blob/dc69769/src/profileEVM.ts#L11)
 
 ___
 
@@ -662,7 +759,7 @@ Analyzes gas usage by operations within a transaction, applying filters and form
 
 #### Defined in
 
-[src/profileEVM.ts:141](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/profileEVM.ts#L141)
+[src/profileEVM.ts:141](https://github.com/1inch/solidity-utils/blob/dc69769/src/profileEVM.ts#L141)
 
 ___
 
@@ -691,7 +788,7 @@ Profiles EVM execution by counting occurrences of specified instructions in a tr
 
 #### Defined in
 
-[src/profileEVM.ts:112](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/profileEVM.ts#L112)
+[src/profileEVM.ts:112](https://github.com/1inch/solidity-utils/blob/dc69769/src/profileEVM.ts#L112)
 
 ## utils
 
@@ -702,14 +799,14 @@ Profiles EVM execution by counting occurrences of specified instructions in a tr
 **`Notice`**
 
 Represents a tuple containing a token quantity and either a transaction receipt or a recursive instance of the same tuple type.
-This type is used in `trackReceivedTokenAndTx` method to track token transfers and their transaction receipts in a nested structure, 
+This type is used in `trackReceivedTokenAndTx` method to track token transfers and their transaction receipts in a nested structure,
 allowing for handling of complex scenarios like chained or batched transactions and tracking several tokens.
  - result[0]: The amount of the token received.
  - result[1]: The transaction receipt or another nested token tracking result.
 
 #### Defined in
 
-[src/utils.ts:164](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L164)
+[src/utils.ts:164](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L164)
 
 ___
 
@@ -737,7 +834,7 @@ Counts the occurrences of specified EVM instructions in a transaction's executio
 
 #### Defined in
 
-[src/utils.ts:238](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L238)
+[src/utils.ts:238](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L238)
 
 ___
 
@@ -763,7 +860,7 @@ Deploys a contract with optional Etherscan verification.
 
 #### Defined in
 
-[src/utils.ts:53](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L53)
+[src/utils.ts:53](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L53)
 
 ___
 
@@ -790,7 +887,7 @@ Deploys a contract given a name and optional constructor parameters.
 
 #### Defined in
 
-[src/utils.ts:120](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L120)
+[src/utils.ts:120](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L120)
 
 ___
 
@@ -819,7 +916,7 @@ Deploys a contract from bytecode, useful for testing and deployment of minimal p
 
 #### Defined in
 
-[src/utils.ts:137](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L137)
+[src/utils.ts:137](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L137)
 
 ___
 
@@ -845,7 +942,7 @@ Corrects the ECDSA signature 'v' value according to Ethereum's standard.
 
 #### Defined in
 
-[src/utils.ts:204](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L204)
+[src/utils.ts:204](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L204)
 
 ___
 
@@ -875,7 +972,7 @@ important part of test.
 
 #### Defined in
 
-[src/utils.ts:263](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L263)
+[src/utils.ts:263](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L263)
 
 ___
 
@@ -902,7 +999,7 @@ Signs a message with a given signer and fixes the signature format.
 
 #### Defined in
 
-[src/utils.ts:223](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L223)
+[src/utils.ts:223](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L223)
 
 ___
 
@@ -926,7 +1023,7 @@ Advances the blockchain time to a specific timestamp for testing purposes.
 
 #### Defined in
 
-[src/utils.ts:107](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L107)
+[src/utils.ts:107](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L107)
 
 ___
 
@@ -963,7 +1060,7 @@ It could be used recursively for multiple tokens via specific `txPromise` functi
 
 #### Defined in
 
-[src/utils.ts:177](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L177)
+[src/utils.ts:177](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L177)
 
 ## utils
 Represents the interface for a token, providing methods to fetch its balance and address.
@@ -990,4 +1087,4 @@ Method which retrieves the token contract's address.
 
 #### Defined in
 
-[src/utils.ts:151](https://github.com/1inch/solidity-utils/blob/cdb7d95/src/utils.ts#L151)
+[src/utils.ts:151](https://github.com/1inch/solidity-utils/blob/dc69769/src/utils.ts#L151)
diff --git a/package.json b/package.json
index 2a3514a..3dd2dc0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@1inch/solidity-utils",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "main": "dist/src/index.js",
   "types": "dist/src/index.d.ts",
   "exports": {
diff --git a/src/bySig.ts b/src/bySig.ts
new file mode 100644
index 0000000..7e289c9
--- /dev/null
+++ b/src/bySig.ts
@@ -0,0 +1,97 @@
+import { ethers } from 'hardhat';
+import { constants } from './prelude';
+import { Wallet } from 'ethers';
+import { SignerWithAddress } from '@nomicfoundation/hardhat-ethers/signers';
+
+/**
+ * Enum defining types of nonces.
+ */
+export enum NonceType {
+    Account,    // Nonce for account
+    Selector,   // Nonce for selector
+    Unique,     // Nonce for unique
+}
+
+/**
+ * Builds traits for {bySig} contract by combining params.
+ * @param nonceType The type of nonce to use. Default is NonceType.Account.
+ * @param deadline The deadline for the message. Default is 0.
+ * @param relayer The relayer address. Default is the zero address.
+ * @param nonce The nonce. Default is 0.
+ * @returns A bigint representing the combined traits.
+ * @throws Error if provided with invalid parameters.
+ */
+export function buildBySigTraits({
+    nonceType = NonceType.Account,
+    deadline = 0,
+    relayer = constants.ZERO_ADDRESS.toString(),
+    nonce = 0,
+} = {}): bigint {
+    if (nonceType > 3) {
+        throw new Error('Wrong nonce type, it should be less than 4');
+    }
+    if (deadline > 0xffffffffff) {
+        throw new Error('Wrong deadline, it should be less than 0xffffffff');
+    }
+    if (relayer.length > 42) {
+        throw new Error('Wrong relayer address, it should be less than 42 symbols');
+    }
+    if (nonce > 0xffffffffffffffffffffffffffffffffn) {
+        throw new Error('Wrong nonce, it should not be more than 128 bits');
+    }
+
+    return (BigInt(nonceType) << 254n) +
+            (BigInt(deadline) << 208n) +
+            ((BigInt(relayer) & 0xffffffffffffffffffffn) << 128n) +
+            BigInt(nonce);
+}
+
+export interface SignedCallStruct {
+    traits: bigint;
+    data: string;
+}
+
+/**
+ * Computes the EIP-712 hash for a given bySig call.
+ * @param name The user readable name of EIP-712 domain.
+ * @param version The version of the EIP-712 domain.
+ * @param chainId The unique identifier for the blockchain network.
+ * @param verifyingContract The Ethereum address of the contract that will verify the signature. This ties the signature to a specific contract.
+ * @param sig The data to be signed.
+ * @returns The EIP-712 hash of the fully encoded data.
+ */
+export function hashBySig(name: string, version: string, chainId: bigint, verifyingContract: string, sig: SignedCallStruct): string {
+    const domain = { name, version, chainId, verifyingContract };
+    const types = {
+        SignedCall: [
+            { name: 'traits', type: 'uint256' },
+            { name: 'data', type: 'bytes' },
+        ],
+    };
+    return ethers.TypedDataEncoder.hash(domain, types, sig);
+}
+
+/**
+ * Signs a given data for {bySig} contract call using EIP-712 standard.
+ * @param name The user readable name of EIP-712 domain.
+ * @param version The version of the EIP-712 domain.
+ * @param chainId The unique identifier for the blockchain network.
+ * @param verifyingContract The Ethereum address of the contract that will verify the signature. This ties the signature to a specific contract.
+ * @param signer The wallet or signer to sign the data.
+ * @param signedCall The call data to be signed, consisting of traits and data.
+ * @returns A Promise that resolves to the signature.
+ */
+export function signSignedCall(
+    name: string,
+    version: string,
+    chainId: bigint | string,
+    verifyingContract: string,
+    signer: Wallet | SignerWithAddress,
+    signedCall: SignedCallStruct,
+): Promise<string> {
+    return signer.signTypedData(
+        { name, version, chainId, verifyingContract },
+        { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
+        signedCall
+    );
+}
diff --git a/src/index.ts b/src/index.ts
index 61b2286..9053865 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,5 +1,6 @@
 // created from 'create-ts-index'
 
+export * from './bySig';
 export * from './expect';
 export * from './permit';
 export * from './prelude';
diff --git a/test/contracts/BySig.test.ts b/test/contracts/BySig.test.ts
index d2809ee..1170fda 100644
--- a/test/contracts/BySig.test.ts
+++ b/test/contracts/BySig.test.ts
@@ -2,34 +2,19 @@ import { constants } from '../../src/prelude';
 import { expect } from '../../src/expect';
 import { loadFixture } from '@nomicfoundation/hardhat-network-helpers';
 import { ethers } from 'hardhat';
-import { NonceType, buildBySigTraits } from './BySigTraits.test';
-
-interface SignedCallStruct {
-    traits: bigint;
-    data: string;
-}
-
-function hashBySig(name: string, version: string, chainId: bigint, verifyingContract: string, sig: SignedCallStruct): string {
-    const domain = { name, version, chainId, verifyingContract };
-    const types = {
-        SignedCall: [
-            { name: 'traits', type: 'uint256' },
-            { name: 'data', type: 'bytes' },
-        ],
-    };
-    return ethers.TypedDataEncoder.hash(domain, types, sig);
-}
+import { NonceType, buildBySigTraits, hashBySig, signSignedCall } from '../../src/bySig';
 
 describe('BySig', function () {
     async function deployAddressArrayMock() {
         const [alice, bob, carol] = await ethers.getSigners();
-        const eip712Version = '1';
+        const version = '1';
+        const name = 'Token';
         const TokenWithBySig = await ethers.getContractFactory('TokenWithBySig');
-        const token = await TokenWithBySig.deploy('Token', 'TKN', eip712Version);
+        const token = await TokenWithBySig.deploy(name, 'TKN', version);
 
         await token.mint(bob.address, 1000);
 
-        return { addrs: { alice, bob, carol }, token, eip712Version };
+        return { addrs: { alice, bob, carol }, token, eip712: { name, version } };
     }
 
     describe('bySigAccountNonces and useBySigAccountNonce', function () {
@@ -83,12 +68,12 @@ describe('BySig', function () {
 
     describe('hashBySig', function () {
         it('should return correct hash', async function () {
-            const { token, eip712Version } = await loadFixture(deployAddressArrayMock);
+            const { token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
             const sig = {
                 traits: buildBySigTraits(),
                 data: '0x',
             };
-            expect(await token.hashBySig(sig)).to.be.equal(hashBySig(await token.name(), eip712Version, await token.getChainId(), await token.getAddress(), sig));
+            expect(await token.hashBySig(sig)).to.be.equal(hashBySig(name, version, await token.getChainId(), await token.getAddress(), sig));
         });
     });
 
@@ -152,30 +137,22 @@ describe('BySig', function () {
         });
 
         it('should revert with wrong signature', async function () {
-            const { addrs: { alice, bob }, token } = await loadFixture(deployAddressArrayMock);
+            const { addrs: { alice, bob }, token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
             const signedCall = {
                 traits: buildBySigTraits({ deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('transfer', [alice.address, 100]),
             };
-            const signature = await alice.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                signedCall
-            );
+            const signature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), alice, signedCall);
             await expect(token.bySig(bob, signedCall, signature)).to.be.revertedWithCustomError(token, 'WrongSignature');
         });
 
         it('should work for transfer method', async function () {
-            const { addrs: { alice, bob }, token } = await loadFixture(deployAddressArrayMock);
+            const { addrs: { alice, bob }, token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
             const signedCall = {
                 traits: buildBySigTraits({ deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('transfer', [alice.address, 100]),
             };
-            const signature = await bob.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                signedCall
-            );
+            const signature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), bob, signedCall);
             await expect(token.bySig(bob, signedCall, signature))
                 .to.emit(token, 'Transfer')
                 .withArgs(bob.address, alice.address, 100);
@@ -184,17 +161,13 @@ describe('BySig', function () {
         });
 
         it('should make approve for sponsored call', async function () {
-            const { addrs: { alice, bob }, token } = await loadFixture(deployAddressArrayMock);
+            const { addrs: { alice, bob }, token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
             const approveData = token.interface.encodeFunctionData('approve', [alice.address, 100]);
             const signedCall = {
                 traits: buildBySigTraits({ deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('sponsoredCall', [await token.getAddress(), '0', approveData, '0x']),
             };
-            const signature = await bob.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                signedCall
-            );
+            const signature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), bob, signedCall);
             expect(await token.allowance(bob.address, alice.address)).to.be.equal(0);
             await expect(token.bySig(bob, signedCall, signature))
                 .to.emit(token, 'ChargedSigner')
@@ -203,29 +176,21 @@ describe('BySig', function () {
         });
 
         it('should work recursively', async function () {
-            const { addrs: { alice, bob, carol }, token } = await loadFixture(deployAddressArrayMock);
+            const { addrs: { alice, bob, carol }, token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
 
             // Bob sign for Carol
             const bobSignedCall = {
                 traits: buildBySigTraits({ relayer: carol.address, deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('transfer', [carol.address, 100]),
             };
-            const bobSignature = await bob.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                bobSignedCall
-            );
+            const bobSignature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), bob, bobSignedCall);
 
             // Carol sign for Alice
             const carolSignedCall = {
                 traits: buildBySigTraits({ relayer: alice.address, deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('bySig', [bob.address, bobSignedCall, bobSignature]),
             };
-            const carolSignature = await carol.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                carolSignedCall
-            );
+            const carolSignature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), carol, carolSignedCall);
 
             await expect(token.bySig(carol, carolSignedCall, carolSignature))
                 .to.emit(token, 'Transfer')
@@ -235,7 +200,7 @@ describe('BySig', function () {
         });
 
         it('should work recursively for sponsored call', async function () {
-            const { addrs: { alice, bob, carol }, token } = await loadFixture(deployAddressArrayMock);
+            const { addrs: { alice, bob, carol }, token, eip712: { name, version } } = await loadFixture(deployAddressArrayMock);
 
             // Bob sign for Carol
             const approveData = token.interface.encodeFunctionData('approve', [carol.address, 100]);
@@ -243,11 +208,7 @@ describe('BySig', function () {
                 traits: buildBySigTraits({ relayer: carol.address, deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('sponsoredCall', [await token.getAddress(), '0', approveData, '0x']),
             };
-            const bobSignature = await bob.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                bobSignedCall
-            );
+            const bobSignature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), bob, bobSignedCall);
 
             // Carol sign for Alice
             const carolSigByData = token.interface.encodeFunctionData('bySig', [bob.address, bobSignedCall, bobSignature]);
@@ -255,11 +216,7 @@ describe('BySig', function () {
                 traits: buildBySigTraits({ relayer: alice.address, deadline: 0xffffffffff, nonceType: NonceType.Selector, nonce: 0 }),
                 data: token.interface.encodeFunctionData('sponsoredCall', [await token.getAddress(), '0', carolSigByData, '0x']),
             };
-            const carolSignature = await carol.signTypedData(
-                { name: 'Token', version: '1', chainId: await token.getChainId(), verifyingContract: await token.getAddress() },
-                { SignedCall: [{ name: 'traits', type: 'uint256' }, { name: 'data', type: 'bytes' }] },
-                carolSignedCall
-            );
+            const carolSignature = await signSignedCall(name, version, await token.getChainId(), await token.getAddress(), carol, carolSignedCall);
 
             expect(await token.allowance(bob.address, carol.address)).to.be.equal(0);
             await expect(token.bySig(carol, carolSignedCall, carolSignature))
diff --git a/test/contracts/BySigTraits.test.ts b/test/contracts/BySigTraits.test.ts
index 0d62253..94cc634 100644
--- a/test/contracts/BySigTraits.test.ts
+++ b/test/contracts/BySigTraits.test.ts
@@ -2,37 +2,7 @@ import { constants } from '../../src/prelude';
 import { expect } from '../../src/expect';
 import { loadFixture } from '@nomicfoundation/hardhat-network-helpers';
 import { ethers } from 'hardhat';
-
-export const NonceType = {
-    Account: 0,
-    Selector: 1,
-    Unique: 2,
-};
-
-export function buildBySigTraits({
-    nonceType = 0,
-    deadline = 0,
-    relayer = constants.ZERO_ADDRESS.toString(),
-    nonce = 0,
-} = {}): bigint {
-    if (nonceType > 3) {
-        throw new Error('Wrong nonce type, it should be less than 4');
-    }
-    if (deadline > 0xffffffffff) {
-        throw new Error('Wrong deadline, it should be less than 0xffffffff');
-    }
-    if (relayer.length > 42) {
-        throw new Error('Wrong relayer address, it should be less than 42 symbols');
-    }
-    if (nonce > 0xffffffffffffffffffffffffffffffffn) {
-        throw new Error('Wrong nonce, it should not be more than 128 bits');
-    }
-
-    return (BigInt(nonceType) << 254n) +
-            (BigInt(deadline) << 208n) +
-            ((BigInt(relayer) & 0xffffffffffffffffffffn) << 128n) +
-            BigInt(nonce);
-}
+import { NonceType, buildBySigTraits } from '../../src/bySig';
 
 describe('BySigTraits', function () {
     async function deployAddressArrayMock() {
@@ -62,7 +32,7 @@ describe('BySigTraits', function () {
 
         it('should revert with unsupported nonce', async function () {
             const { bySigTraitsMock } = await loadFixture(deployAddressArrayMock);
-            const value = buildBySigTraits({ nonceType: 3 });
+            const value = buildBySigTraits({ nonceType: 3 as NonceType });
             await expect(bySigTraitsMock.nonceType(value)).to.be.revertedWithCustomError(bySigTraitsMock, 'WrongNonceType');
         });
     });