code: public function created(JWTCreatedEvent $event)
      {
          $data = $event->getData();
          $user = $event->getUser();
  
          // @todo Standardize interface between app user entity and security user model
          if ($user instanceof User) {
              $this->accessor->setValue($data, $this->property, $user->getIdentity()->getType());
          } else {
              $this->accessor->setValue($data, $this->property, $user->getIdentity());
          }
  
          $event->setData($data);
      }
docs: Add the identity type to the token
  
  @param \Lexik\Bundle\JWTAuthenticationBundle\Event\JWTCreatedEvent $event
  @throws \Ds\Component\Security\Exception\InvalidUserTypeException