returnurl结果回调(get)

{
    "success": "true",
    "token": "1234567890",
    "msg": "实名认证通过",
    "sign": "MEUCIBTubmDmCZJSA2DZNGG1uBN1K4VBAuWRFaYyKhYa4JghAiEAl6FMTgBCJKWHrq"
}