### 关注 ~~~[api] post:http://api.satin.com/api/v1/follow *user_id='e5e3b4cba81b6206bf278bafabbf18a0'#用户id *follow_user_id='96cd50899cd1c43cec028879afb37c6c'#被关注人id <<< success { "code": 200, "msg": "请求成功", "data": {} } <<< error { "code": 400, "msg": "暂无关注", "data": {} }