EventEventCallback
    ( EventCallback
        { eventId = EventId
            { unEventId = "Ev043W120WSH" }
        , teamId = TeamId
            { unTeamId = "T043DB835ML" }
        , eventTime = MkSystemTime
            { systemSeconds = 1664222685
            , systemNanoseconds = 0
            }
        , event = EventChannelJoinMessage
        }
    )