question: public void listenModLog ( String username , String token ) { if ( ! hasServer ( ) ) { return ; } if ( modLogListen . containsKey ( username ) ) { return ; } this . token = token ; long userId = getUserId ( username ) ; modLogListen . put ( username , userId ) ; LOGGER . info ( "[PubSub] LISTEN ModLog " + username + " " + userId ) ; if ( userId != - 1 ) { sendListenModLog ( userId , true ) ; } }
target:  Start receiving the modlog for the given channel (username). The token is requires to authenticate.