def get_queryset(self):
        user = self.request.user

        queryset = Notification.objects.annotate(Count('album'), Count('video'))
        notifs_of_albums = queryset.filter(album__count__gte=1)
        notifs_of_videos = queryset.filter(video__count__gte=1)

        notifs_of_albums_to_user = notifs_of_albums.filter(
            album__artist__in=Artist.objects.filter(subscriptions__subscriber=user)
        )
        notifs_of_videos_to_user = notifs_of_videos.filter(
            video__channel__in=Channel.objects.filter(subscriptions__subscriber=user)
        )

        all_notifs_to_user = notifs_of_albums_to_user | notifs_of_videos_to_user

        return all_notifs_to_user.order_by('-creation_date_time')