HttpPost request = new HttpPost(SERVICE_URI + "/LoginUser");
                    request.setHeader("Accept", "application/json");
                    request.setHeader("Content-type", "application/json");
                    // Build JSON string
                    JSONStringer loginData = new JSONStringer()
                            .object()
                            .key("userName").value("TEST001")
                            .key("SecurityKeyCode").value("PKEY0001")
                            .endObject();
                    StringEntity entity = new StringEntity(loginData.toString());
                    Toast toastB = Toast.makeText(getApplicationContext(),
                            loginData.toString() + "\n",
                            Toast.LENGTH_SHORT);
                    toastB.show();
                    request.setEntity(entity);
                    // Send request to WCF service
                    DefaultHttpClient httpClient = new DefaultHttpClient();
                    HttpResponse response = httpClient.execute(request);
                    Toast toastA = Toast.makeText(getApplicationContext(),
                            response.getStatusLine().getStatusCode() + "\n" + request.toString() + "\n",
                            Toast.LENGTH_SHORT);
                    toastA.show();