{

"code": "SIGN_ERROR",

"detail": {

"detail": {

"issue": "sign not match"

},

"field": "signature",

"location": "authorization",

"sign_information": {

"method": "POST",

"sign_message_length": 953,

"truncated_sign_message": "POST\n/v3/vehicle/etc/preopen\n1569052402\n1569052402\n{\"sp_app\n",

"url": "/v3/vehicle/etc/preopen"

}

},

"message": "错误的签名，验签失败"

}