新建数据模型

{
    "dutyId": 0,
    "orderList": [
        {
            "orderNo": "string",
            "settlementAmount": 0,
            "name": "string",
            "idNo": "string",
            "bankCard": "string",
            "phone": "string",
            "receiptUrl": "string",
            "contractList": [
                {
                    "contractUrl": "string",
                    "contractNo": "string",
                    "contractName": "string",
                    "contractAmount": 0,
                    "startDate": "string",
                    "endDate": "string"
                }
            ]
        }
    ]
}