Hello,

I am executing the endpoint https://account-d.docusign.com/oauth/auth?response_type=code&scope=signature%20impersonation&client_id=5a4a5c68-492f-4edc-a66c-ef2f88b17af8&redirect_uri=http://localhost, which returns an encoded code. However, when I input this code into the JWT site, it fails to decode the PAYLOAD section. I use this code to add to the assertion and use the link https://account-d.docusign.com/oauth/token to request the token, but it is unsuccessful, resulting in the following error:

{ "error": "invalid_grant", "error_description": "user_not_found" }

I would like to know how I can resolve this situation.