What is this time format in "event time" field of ScyllaDb audit logs. Please somebody tell me. Below is mentioned audit log

date                            | node      | event_time                           | category | consistency | error | keyspace_name | operation                                                                                                                                                                                                   | source    | table_name | username
---------------------------------+-----------+--------------------------------------+----------+-------------+-------+---------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------+------------+-----------
 2023-12-04 00:00:00.000000+0000 | 127.0.0.1 | e86a8193-92b9-11ee-b5c8-08dfdd5d6623 |     AUTH |             | False |               |                                                                                                                                                                                                       LOGIN | 127.0.0.1 |            | cassandra

event_time is a timeuuid. Quoting from the cql types document:

Version 1 UUID, generally used as a “conflict-free” timestamp. See Working with UUIDs for details

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