String response = apiResponse.asString();
AccessToken newAccessToken = new AccessToken(response);
String newToken = newAccessToken.getToken();
if(newToken != null) {
User facebookUser = facebook.getMe();
loginUserModel.setFacebookAccessToken(new Text(newToken));
loginUserModel.setFacebookAccountName(facebookUser.getName());
// ユーザーグループを変更
if(loginUserModel.getGroup() < 10) {
Random rnd = new Random();
loginUserModel.setGroup(rnd.nextInt(10) + 10);