用户相关收藏交易对收藏交易对 POST: /v1/future-u/user/user/collection/add Content-Type: application/x-www-form-urlencoded && application/json Parameters参数数据类型是否必须默认值描述取值范围symbolstringtrueN/A交易对限流规则200/s/apikeyResponse{ "msgInfo": { "code": "", "msg": "" }, "msg": "", "data": true, "code": 200}