AA24 Signature Error

The signature is invalid

Check the signature field of the user operation. It may be in an incompatible format.

Debugging checklist

  • The user operation hash is correct
    • The user operation data matches the final user operation that is sent to the bundler client
    • The Entry Point address is correct
    • The Chain ID is correct
  • The smart contract of the account expects the same type of signature (e.g., keccak256)

References

Learn more about signing user operations

Get the user operation hash