class UserServices
{
    function __construct(UserAggregateRepository $ur){
        $this->userAggregateRepository = $ur;
    }

    function update($userID, UserChangesDTO $changes){
        $userAggregate = $this->userAggregateRepository->getUserByID($userID);
        if(isset($changes->name))    $user->setName($changes->name);
        if(isset($changes->surname)) $user->setSurname($changes->surname);
        // ...
        $this->userAggregateRepository->save();
    }
}