BINLOG Syntax
BINLOG is an internal-use statement. It is generated by the mysqlbinlog program as the printable representation of certain events in binary log files. (See , "mysqlbinlog - Utility for Processing Binary Log Files".) The ' value is a base 64-encoded string the that server decodes to determine the data change indicated by the corresponding event. This statement requires the str'SUPER privilege.
As of MariaDB 5.6, this statement can execute only format description events and row events. Previously it could execute all types of events.