This error was not happening prior to July 7th.
When running a query to upload binary data to a Google Cloud Bucket, a 422 statusCode is returned with the message "serviceAccountKey is not a valid JSON object"
No changes have been made to this query or the resource since this query was succesfully ran prior to July 7th. When doing 'Test Connection' on the resource, a 'Connection Success' is returned.
This is in staging environment.
Please see screenshot.