string(386) "{"code":"SIGN_ERROR","detail":{"detail":{"issue":"sign not

match"},"field":"signature","location":"authorization","sign_information":{"method":"POST","sign_message_length":2109,"truncated_sign_message":"POST\n/v3/marketing/busifavor/stocks\n1590474725\n9ixs491ysdlobh66awph3nz504tblrdk\n{\r\n\"st\n","url":"/v3/marketing/busifavor/stocks"}},"message":"错误的签名，验签失败"}"