SigningCreateReqVO

{
    "contractId": 1001,
    "taskName": "租赁合同签署",
    "deadline": "2025-12-31 23:59:59",
    "remark": "请在签署前仔细阅读合同条款",
    "participants": [
        {
            "type": "personal",
            "signatoryName": "甲方",
            "companyName": "深圳XX科技有限公司",
            "userName": "张三",
            "userMobile": "13800138000",
            "signPosition": "page\":1,\"x\":100,\"y\":200"
        }
    ]
}