diff --git a/js/src/api/contract/contract.js b/js/src/api/contract/contract.js
index 40caa764334..cef75eda734 100644
--- a/js/src/api/contract/contract.js
+++ b/js/src/api/contract/contract.js
@@ -150,7 +150,9 @@ export default class Contract {
       log.event = event.name;
 
       decoded.params.forEach((param) => {
-        log.params[param.name] = param.token.value;
+        const { type, value } = param.token;
+
+        log.params[param.name] = { type, value };
       });
 
       return log;
diff --git a/js/src/dapps/basiccoin/Deploy/Events/events.js b/js/src/dapps/basiccoin/Deploy/Events/events.js
index a21672a8efc..4b51afb59b6 100644
--- a/js/src/dapps/basiccoin/Deploy/Events/events.js
+++ b/js/src/dapps/basiccoin/Deploy/Events/events.js
@@ -110,6 +110,10 @@ export default class Events extends Component {
 
   logToEvent = (log) => {
     log.key = api.util.sha3(JSON.stringify(log));
+    log.params = Object.keys(log.params).reduce((params, name) => {
+      params[name] = log.params[name].value;
+      return params;
+    }, {});
 
     return log;
   }
diff --git a/js/src/dapps/basiccoin/Transfer/Events/events.js b/js/src/dapps/basiccoin/Transfer/Events/events.js
index dcead03bb78..101c77f73a3 100644
--- a/js/src/dapps/basiccoin/Transfer/Events/events.js
+++ b/js/src/dapps/basiccoin/Transfer/Events/events.js
@@ -114,6 +114,10 @@ export default class Events extends Component {
 
   logToEvent = (log) => {
     log.key = api.util.sha3(JSON.stringify(log));
+    log.params = Object.keys(log.params).reduce((params, name) => {
+      params[name] = log.params[name].value;
+      return params;
+    }, {});
 
     return log;
   }
@@ -139,7 +143,6 @@ export default class Events extends Component {
       .concat(pendingEvents)
       .filter((log) => !minedNew.find((event) => event.transactionHash === log.transactionHash));
     const events = [].concat(pendingNew).concat(minedNew);
-    console.log('*** events', events.map((event) => event.address));
     this.setState({ loading: false, events, minedEvents: minedNew, pendingEvents: pendingNew });
   }
 }
diff --git a/js/src/dapps/gavcoin/Events/events.js b/js/src/dapps/gavcoin/Events/events.js
index cb287b3a7f3..ba71d65413c 100644
--- a/js/src/dapps/gavcoin/Events/events.js
+++ b/js/src/dapps/gavcoin/Events/events.js
@@ -106,7 +106,10 @@ export default class Events extends Component {
         logIndex,
         transactionHash,
         transactionIndex,
-        params,
+        params: Object.keys(params).reduce((data, name) => {
+          data[name] = params[name].value;
+          return data;
+        }, {}),
         key
       };
     };
diff --git a/js/src/dapps/registry/Events/events.js b/js/src/dapps/registry/Events/events.js
index ffb1fc9190a..10280ae5232 100644
--- a/js/src/dapps/registry/Events/events.js
+++ b/js/src/dapps/registry/Events/events.js
@@ -48,9 +48,9 @@ const renderEvent = (classNames, verb) => (e, accounts, contacts) => {
 
   return (
     <tr key={ e.key } className={ classes }>
-      <td>{ renderAddress(e.parameters.owner, accounts, contacts) }</td>
+      <td>{ renderAddress(e.parameters.owner.value, accounts, contacts) }</td>
       <td><abbr title={ e.transaction }>{ verb }</abbr></td>
-      <td><code>{ renderHash(bytesToHex(e.parameters.name)) }</code></td>
+      <td><code>{ renderHash(bytesToHex(e.parameters.name.value)) }</code></td>
       <td>{ renderStatus(e.timestamp, e.state === 'pending') }</td>
     </tr>
   );
@@ -64,10 +64,10 @@ const renderDataChanged = (e, accounts, contacts) => {
 
   return (
     <tr key={ e.key } className={ classNames }>
-      <td>{ renderAddress(e.parameters.owner, accounts, contacts) }</td>
+      <td>{ renderAddress(e.parameters.owner.value, accounts, contacts) }</td>
       <td><abbr title={ e.transaction }>updated</abbr></td>
       <td>
-        key <code>{ new Buffer(e.parameters.plainKey).toString('utf8') }</code> of <code>{ renderHash(bytesToHex(e.parameters.name)) }</code>
+        key <code>{ new Buffer(e.parameters.plainKey.value).toString('utf8') }</code> of <code>{ renderHash(bytesToHex(e.parameters.name.value)) }</code>
       </td>
       <td>{ renderStatus(e.timestamp, e.state === 'pending') }</td>
     </tr>
diff --git a/js/src/dapps/signaturereg/services.js b/js/src/dapps/signaturereg/services.js
index 3963d394c7f..0b124589791 100644
--- a/js/src/dapps/signaturereg/services.js
+++ b/js/src/dapps/signaturereg/services.js
@@ -30,7 +30,10 @@ const logToEvent = (log) => {
     logIndex,
     transactionHash,
     transactionIndex,
-    params,
+    params: Object.keys(params).reduce((data, name) => {
+      data[name] = params[name].value;
+      return data;
+    }, {}),
     key
   };
 };
diff --git a/js/src/dapps/tokenreg/Status/actions.js b/js/src/dapps/tokenreg/Status/actions.js
index a479179b223..d02c8e77576 100644
--- a/js/src/dapps/tokenreg/Status/actions.js
+++ b/js/src/dapps/tokenreg/Status/actions.js
@@ -148,27 +148,27 @@ export const subscribeEvents = () => (dispatch, getState) => {
           return dispatch(setTokenData(params.id.toNumber(), {
             tla: '...',
             base: -1,
-            address: params.addr,
-            name: params.name,
+            address: params.addr.value,
+            name: params.name.value,
             isPending: true
           }));
         }
 
         if (event === 'Registered' && type === 'mined') {
-          return dispatch(loadToken(params.id.toNumber()));
+          return dispatch(loadToken(params.id.value.toNumber()));
         }
 
         if (event === 'Unregistered' && type === 'pending') {
-          return dispatch(setTokenPending(params.id.toNumber(), true));
+          return dispatch(setTokenPending(params.id.value.toNumber(), true));
         }
 
         if (event === 'Unregistered' && type === 'mined') {
-          return dispatch(deleteToken(params.id.toNumber()));
+          return dispatch(deleteToken(params.id.value.toNumber()));
         }
 
         if (event === 'MetaChanged' && type === 'pending') {
           return dispatch(setTokenData(
-            params.id.toNumber(),
+            params.id.value.toNumber(),
             { metaPending: true, metaMined: false }
           ));
         }
@@ -176,13 +176,13 @@ export const subscribeEvents = () => (dispatch, getState) => {
         if (event === 'MetaChanged' && type === 'mined') {
           setTimeout(() => {
             dispatch(setTokenData(
-              params.id.toNumber(),
+              params.id.value.toNumber(),
               { metaPending: false, metaMined: false }
             ));
           }, 5000);
 
           return dispatch(setTokenData(
-            params.id.toNumber(),
+            params.id.value.toNumber(),
             { metaPending: false, metaMined: true }
           ));
         }
diff --git a/js/src/views/Contract/Events/Event/event.js b/js/src/views/Contract/Events/Event/event.js
index cee243bac8e..17d06cb37f0 100644
--- a/js/src/views/Contract/Events/Event/event.js
+++ b/js/src/views/Contract/Events/Event/event.js
@@ -52,10 +52,10 @@ class Event extends Component {
     const keys = Object.keys(event.params).map((key, index) => {
       return <div className={ styles.key } key={ `${event.key}_key_${index}` }>{ key }</div>;
     });
-    const values = Object.values(event.params).map((value, index) => {
+    const values = Object.values(event.params).map((param, index) => {
       return (
         <div className={ styles.value } key={ `${event.key}_val_${index}` }>
-          { this.renderValue(value) }
+          { this.renderParam(param) }
         </div>
       );
     });
@@ -82,16 +82,16 @@ class Event extends Component {
     );
   }
 
-  renderValue (value) {
+  renderParam (param) {
     const { api } = this.context;
 
-    if (api.util.isInstanceOf(value, BigNumber)) {
-      return value.toFormat(0);
-    } else if (api.util.isArray(value)) {
-      return api.util.bytesToHex(value);
+    if (api.util.isInstanceOf(param.value, BigNumber)) {
+      return param.value.toFormat(0);
+    } else if (api.util.isArray(param.value)) {
+      return api.util.bytesToHex(param.value);
     }
 
-    return value.toString();
+    return param.value.toString();
   }
 
   formatBlockTimestamp (block) {