curl -X PUT "https://config.gms.ensync.cloud/v1/event/1" \
  -H "X-API-KEY: your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "order/created",
    "payload": {
      "orderId": "string",
      "amount": "number",
      "customerId": "string",
      "items": "array",
      "shippingAddress": "object"
    }
  }'