### 웹훅(HTTP) 예시: 

```http
POST /your_uri HTTP/1.1
host: your.host
accept: application/json
content-type: application/json
content-length: 165
authorization: Signature 52eac2713985e212351610d008e7e14fae46f902
{
  "notification_type":"user_validation",
  "user":{
      "ip":"127.0.0.1",
      "phone":"18777976552",
      "email":"email@example.com",
      "id":1234567,
      "name":"Xsolla User",
      "country":"US"
  }
}
```