protected function findAccount()
 {
     $account = Account::findOne(Yii::$app->user->identity->getId());
     if ($account === null) {
         throw new NotFoundHttpException('The requested page does not exist');
     }
     return $account;
 }
 protected function findAccount($id)
 {
     $id = Uuid::str2uuid($id);
     $account = Account::findOne($id);
     if ($account === null) {
         throw new NotFoundHttpException('The requested page does not exist');
     }
     return $account;
 }