Events interface
# Events interface
uint64 timestamp # time since system start (microseconds)
uint32 id # Event ID
uint16 event_sequence # Event sequence number
uint8[25] arguments # (optional) arguments, depend on event id
uint8 log_levels # Log levels: 4 bits MSB: internal, 4 bits LSB: external
uint8 ORB_QUEUE_LENGTH = 8