{

    "code": "SIGN_ERROR",

    "detail": {

        "detail": {

            "issue": "sign not match"

        },

        "field": "signature",

        "location": "authorization",

        "sign_information": {

            "method": "POST",

            "sign_message_length": 1197,

            "truncated_sign_message": "POST\n/v3/marketing/busifavor/stocks\n1606708682\n1331EC3C5055EB0635F38938AC24E1CC\n{\r\n    \"\n",

            "url": "/v3/marketing/busifavor/stocks"

        }

    },

    "message": "错误的签名，验签失败"

}

POST\n/v3/marketing/busifavor/stocks\n1606708682\n1331EC3C5055EB0635F38938AC24E1CC\n 这个也没错呀，是什么原因？