ZF\Apigility\Doctrine\Server\Event\DoctrineResourceEvent::getEntity PHP Method

    public function getEntity()
    {
        return $this->entity;
    }

 public function onPreCreateEvent(DoctrineResourceEvent $e)
 {
     /**
      * @var User $entity
      */
     $entity = $e->getEntity();
     $entity->changePassword('Welcome123');
 }