{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "required": [
        "id",
        "price"
    ],
    "properties": {
        "id": {
            "type": "string"
        },
        "data": {
            "type": "object",
            "properties": {
                "img": {
                    "type": "string"
                },
                "text": {
                    "type": "string"
                },
                "app_url": {
                    "type": "string"
                }
            }
        },
        "price": {
            "type": "number"
        },
        "click_through_url": {
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "tracking_url": {
            "type": "array",
            "items": {
                "type": "string"
            }
        }
    }
}