[SOLVED] Send Extension PubSub Message with JWT Bearer

Extensions
5 
{
    "error": "Forbidden",
    "status": 403,
    "message": "{\n  \"status\": 403,\n  \"message\": \"JWT has expired\",\n  \"error\": \"Forbidden\"\n}"
}

It helps using the EBS secret instead of the client secret.

Now to find out why it expired.