电子面单使用云签增值服务时，传参需增加以下参数：

1、在下单时，param层级下多加一个参数 "fileUrl",对应的值为云签文件上传接口返回的fileId

2、德邦还需要设置needBack=1,param层增加addService参数， "addService":"{\"backnum\":{\"value\":\"电子云签\"}}"，backnum表示回单服务，value表示具体的回单形式。另外需要在orderId传入上传文件成功响应的orderId字段

请求参数示例：

{
	"type": "",
	"partnerId": "*****",
	"partnerKey": "",
	"code": "",
	"kuaidicom": "debangkuaidi",
	"recMan": {
		"name": "张三",
		"mobile": "159****912",
		"printAddr": "深圳南山区金蝶软件园b栋",
		"company": ""
	},
	"sendMan": {
		"name": "李四",
		"mobile": "159*****912",
		"printAddr": "深圳南山区金蝶软件园b栋"
	
	},
	"cargo": "test",
	"weight": "",
	"payType": "CONSIGNEE",
	"expType": "标准快递",
	"remark": "测试下单,请勿发货",
    "needBack":"1",
    "addService":"{\"backnum\":{\"value\":\"电子云签\"}}",
    "orderId": "01732870368200FDzAJD",
    "fileUrl": "3725563646228405255"
}