private static void HandleBuff(PacketReader packet)
        {
            long clubId = packet.ReadLong();
            int buffId = packet.ReadInt();

            Club club = GameServer.ClubManager.GetClubById(clubId);
            if (club == null)
            {
                return;
            }

            // TODO add buff effect packet
            club.Leader.Session.Send(ClubPacket.ChangeBuffReceipt(club, buffId));
            club.BroadcastPacketClub(ClubPacket.ChangeBuff(club, buffId));
        }