It's TK103 protocol, but this message type is not supported yet, as far as I know.
2020-12-31 22:11:23 INFO: [a6f7d235: tk103 > 177.25.208.46] HEX: 283032373034353930363035344150303148534f29
2020-12-31 22:11:35 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:11:50 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:11:52 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 283032373034353930363035344250303033353532323730343539303630353448534f31393929
2020-12-31 22:11:52 INFO: [a6f7d235: tk103 > 177.25.208.46] HEX: 283032373034353930363035344150303148534f29
2020-12-31 22:12:05 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:12:20 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:12:35 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:12:50 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31363437317d0a7b3732342c32332c3633312c31323838317d0a7b3732342c32332c3633312c31323838327d0a2c303130303030303029
2020-12-31 22:13:05 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31343930327d0a7b3732342c32332c3533312c31363437327d0a7b3732342c32332c3633312c31323838317d0a2c303130303030303029
2020-12-31 22:13:20 INFO: [a6f7d235: tk103 < 177.25.208.46] HEX: 28303237303435393036303534425a30302c7b3732342c32332c3533312c31343930327d0a7b3732342c32332c3533312c31363437327d0a7b3732342c32332c3633312c31323838317d0a2c303130303030303029
vlw Anton Tananaev, thanks
please do not understand how to use the protocol?
hexadecimal code:
decode:
thanks.