How can I authenticate with JWT in Unity3D?

    WWWForm form = new WWWForm();
    Dictionary<string, string> headers = form.headers;
    string auth = "Token";
    headers"Authorization"] = "Bearer"+ auth;
    WWW www = new WWW(url, null, headers);

The basic authorization does not work.

That is a very general question that requires more knowledge on Unity3D than on the Auth0 service itself. As such you should consider posting in a general Q&A forum like StackOverflow as you may be able to obtain faster and more relevant responses.

In relation to the question itself I would also advise you to include what exactly does not work and what’s the observed behavior.