/**
  * Handle the command
  *
  * @param $command
  * @return mixed
  */
 public function handle($command)
 {
     $user = $this->userRepo->findById($command->userId);
     $this->userRepo->follow($command->userIdToFollow, $user);
     return $user;
 }
 /**
  * Handle the command.
  *
  * @param object $command
  * @return void
  */
 public function handle($command)
 {
     $user = $this->userRepo->findById($command->userId);
     $this->userRepo->unfollow($command->userIdToUnfollow, $user);
 }