string encodedUserCredentials = Convert.ToBase64String(Encoding.ASCII.GetBytes("user:password"));
            string userData = "username=" + Username + "&password=" + Password + "&grant_type=password";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(BaseUrl + "/token");
            request.Accept = "application/json";
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.Headers.Add("Authorization", "Basic " + encodedUserCredentials);

            StreamWriter requestWriter = new StreamWriter(request.GetRequestStream());
            requestWriter.Write(userData);
            requestWriter.Close();

            var response = request.GetResponse() as HttpWebResponse;

            using (Stream stream = response.GetResponseStream())
            {
                StreamReader reader = new StreamReader(stream, Encoding.UTF8);
                String json = reader.ReadToEnd();

                ResponseObj deserializedJson = JsonConvert.DeserializeObject<ResponseObj>(json);
                UserToken Token = new UserToken
                {
                    AccessToken = deserializedJson.access_token,
                    TokenType = deserializedJson.token_type,
                    ExpiresIn = deserializedJson.expires_in,
                };

                return Token;
            }