Update src/aleph/sdk/connectors/superfluid.py

Co-authored-by: Hugo Herter <git@hugoherter.com>

Author: 1yam

src/aleph/sdk/connectors/superfluid.py

@@ -35,7 +35,7 @@ def sign_and_send():
     # API in `web3.eth`. This runs it in a non-blocking asyncio executor.
     loop = asyncio.get_running_loop()
     transaction_hash = await loop.run_in_executor(None, sign_and_send)
-    return transaction_hash.hex()
+    return transaction_hash
 
 
 async def execute_operation_with_account(