{ "openid": "oDjGHs-1yCnGrRovBj2yHij5JAAA" }
curl --location --request POST 'http://127.0.0.1/cgi-bin/user/convert_to_userid' \ --header 'Content-Type: application/json' \ --data-raw '{ "openid": "oDjGHs-1yCnGrRovBj2yHij5JAAA" }'
{ "errcode": 0, "errmsg": "string", "userid": "string" }