后台用户优惠券绑定记录

{
    "code": 0,
    "message": "string",
    "data": {
        "total": 0,
        "list": [
            {
                "id": 0,
                "user_id": 0,
                "coupon_source": "string",
                "coupon_id": 0,
                "status": 0,
                "first_order_flag": 0,
                "claimed_at": "string",
                "created_at": "string",
                "updated_at": "string",
                "order_id": 0,
                "used_at": "string"
            }
        ]
    }
}