DateTimeFromToMessage
2018-05-09 07:18:04 PM long enter the chat room
2018-05-09 07:18:28 PM long left the chat room
2018-05-09 07:54:43 PM long enter the chat room
2018-05-09 07:55:36 PM long m,gjk,
2018-05-09 07:55:41 PM long left the chat room