{
  "id": "123",
  "tiles": [
    {
      "id": 1234,
      "width": 100,
      "ratio": 1.5
    },
    {
      "id": 1235,
      "width": 300,
      "ratio": 1.5
    }
  ],
  "context": {
    "ip": "192.168.1.1",
    "user_agent": "curl"
  }
}