EventEventCallback
    ( EventCallback
        { eventId = EventId
            { unEventId = "Ev044RKJHB8W" }
        , teamId = TeamId
            { unTeamId = "T043DB835ML" }
        , eventTime = MkSystemTime
            { systemSeconds = 1664827321
            , systemNanoseconds = 0
            }
        , event = EventChannelLeft
            ( ChannelLeftEvent
                { actorId = UserId
                    { unUserId = "U043H11ES4V" }
                , channel = ConversationId
                    { unConversationId = "C043KSKGJUB" }
                , eventTs = "1664827321.000300"
                }
            )
        }
    )