I see there is no user parameter in webhook payload while triggering dashboard events.
Here:
{
"event": "key_request_event.submitted",
"data": ....
}
Please check below link for reference…
https://tyk.io/docs/tyk-developer-portal/tyk-portal-classic/portal-events-notifications/
How we can Identify the username who change, add or delete API def.
Thanks,
SA