curl --location --request POST 'http://mp.xipuduo.com/index.php/Retail/Vip/updateBalance_v4' \
--form 'vid="1";type=false' \
--form 'balance="0";type=false' \
--form 'merchant_id="1"' \
--form 'sign="123456"'{
"status": 1,
"msg": "修改成功"
}