How can I stream audit events from my gitlab cloud instance

hey i have a cloud instance of gitlab and i would like to know how can i stream audit events (login to gitlab) to another destination. i tried to create mutation of instanceExternalAuditEventDestinationCreate but I am getting “errors”: [
“message”: “You do not have access to this mutation.”,
“locations”: [
“line”: 2,
“column”: 3

not sure what to do ?

any suggestions ?