"self": "https://yourdomain.commercelayer.io/api/webhooks/xYZkjABcde"
"name": "myorg-orders.place",
"callback_url": "https://yourapp.com/webhooks",
"circuit_state": "closed",
"circuit_failure_count": 5,
"created_at": "2018-01-01T12:00:00.000Z",
"updated_at": "2018-01-01T12:00:00.000Z",
"reference": "ANY-EXTERNAL-REFEFERNCE",
"reference_origin": "ANY-EXTERNAL-REFEFERNCE-ORIGIN",
"last_event_callbacks": {
"self": "https://yourdomain.commercelayer.io/api/webhooks/xYZkjABcde/relationships/last_event_callbacks",
"related": "https://yourdomain.commercelayer.io/api/webhooks/xYZkjABcde/last_event_callbacks"