diff --git a/storage3/_async/file_api.py b/storage3/_async/file_api.py
index f3a31c46..6113a6bd 100644
--- a/storage3/_async/file_api.py
+++ b/storage3/_async/file_api.py
@@ -86,7 +86,7 @@ async def upload_to_signed_url(
         token: str,
         file: Union[BufferedReader, bytes, FileIO, str, Path],
         file_options: Optional[FileOptions] = None,
-    ) -> Response:
+    ) -> UploadResponse:
         """
         Upload a file with a token generated from :meth:`.create_signed_url`
 
@@ -139,9 +139,12 @@ async def upload_to_signed_url(
                     headers.pop("content-type"),
                 )
             }
-        return await self._request(
+        response = await self._request(
             "PUT", final_url, files=_file, headers=headers, data=_data
         )
+        data: UploadData = response.json()
+
+        return UploadResponse(path=path, Key=data.get("Key"))
 
     async def create_signed_url(
         self, path: str, expires_in: int, options: URLOptions = {}
diff --git a/storage3/_sync/file_api.py b/storage3/_sync/file_api.py
index c0854bd2..ce69c5a8 100644
--- a/storage3/_sync/file_api.py
+++ b/storage3/_sync/file_api.py
@@ -86,7 +86,7 @@ def upload_to_signed_url(
         token: str,
         file: Union[BufferedReader, bytes, FileIO, str, Path],
         file_options: Optional[FileOptions] = None,
-    ) -> Response:
+    ) -> UploadResponse:
         """
         Upload a file with a token generated from :meth:`.create_signed_url`
 
@@ -139,7 +139,12 @@ def upload_to_signed_url(
                     headers.pop("content-type"),
                 )
             }
-        return self._request("PUT", final_url, files=_file, headers=headers, data=_data)
+        response = self._request(
+            "PUT", final_url, files=_file, headers=headers, data=_data
+        )
+        data: UploadData = response.json()
+
+        return UploadResponse(path=path, Key=data.get("Key"))
 
     def create_signed_url(
         self, path: str, expires_in: int, options: URLOptions = {}
diff --git a/tests/_async/test_client.py b/tests/_async/test_client.py
index 7c9c283e..aba9361d 100644
--- a/tests/_async/test_client.py
+++ b/tests/_async/test_client.py
@@ -331,12 +331,15 @@ async def test_client_upload_to_signed_url(
     """Ensure we can upload to a signed URL"""
     data = await storage_file_client.create_signed_upload_url(file.bucket_path)
     assert data["path"]
-    upload_result = await storage_file_client.upload_to_signed_url(
+    await storage_file_client.upload_to_signed_url(
         data["path"], data["token"], file.file_content, {"content-type": file.mime_type}
     )
-    upload_data = upload_result.json()
-    assert upload_data
-    assert upload_data.get("error") is None
+    image = await storage_file_client.download(file.bucket_path)
+    files = await storage_file_client.list(file.bucket_folder)
+    image_info = next((f for f in files if f.get("name") == file.name), None)
+
+    assert image == file.file_content
+    assert image_info.get("metadata", {}).get("mimetype") == file.mime_type
 
 
 async def test_client_create_signed_url(
diff --git a/tests/_sync/test_client.py b/tests/_sync/test_client.py
index 9cf62421..e82a427e 100644
--- a/tests/_sync/test_client.py
+++ b/tests/_sync/test_client.py
@@ -329,12 +329,15 @@ def test_client_upload_to_signed_url(
     """Ensure we can upload to a signed URL"""
     data = storage_file_client.create_signed_upload_url(file.bucket_path)
     assert data["path"]
-    upload_result = storage_file_client.upload_to_signed_url(
+    storage_file_client.upload_to_signed_url(
         data["path"], data["token"], file.file_content, {"content-type": file.mime_type}
     )
-    upload_data = upload_result.json()
-    assert upload_data
-    assert upload_data.get("error") is None
+    image = storage_file_client.download(file.bucket_path)
+    files = storage_file_client.list(file.bucket_folder)
+    image_info = next((f for f in files if f.get("name") == file.name), None)
+
+    assert image == file.file_content
+    assert image_info.get("metadata", {}).get("mimetype") == file.mime_type
 
 
 def test_client_create_signed_url(