{
    "type": "object",
    "properties": {
        "created_at": {
            "type": "string"
        },
        "id": {
            "type": "integer"
        },
        "referrer": {
            "type": "null"
        },
        "state": {
            "type": "string"
        },
        "subscribable_id": {
            "type": "integer"
        },
        "subscribable_type": {
            "type": "string"
        },
        "subscriber": {
            "type": "object",
            "properties": {
                "created_at": {
                    "type": "string"
                },
                "email_address": {
                    "type": "string"
                },
                "id": {
                    "type": "integer"
                },
                "state": {
                    "type": "string"
                }
            }
        }
    },
    "version": 1
}