{ "$schema": "https://json-schema.org/draft/2020-12/schema", "title": "CallbackAttributes", "type": "object", "properties": { "url": { "type": "string", "description": "The HTTPS URL to send callback messages to." }, "subscriptions": { "type": "array", "description": "The audit event types that trigger the callback." }, "created_at": { "type": "string" }, "updated_at": { "type": "string" } } }