Inbox

Outbox

FollowerSet

Group
    ident SharerId
    actor ActorId

    UniqueGroup ident

Sharer
    ident   ShrIdent
    name    Text     Maybe
    created UTCTime

    UniqueSharer ident

Actor
    name      Text
    desc      Text
    createdAt UTCTime
    inbox     InboxId
    outbox    OutboxId
    followers FollowerSetId

    UniqueActorInbox     inbox
    UniqueActorOutbox    outbox
    UniqueActorFollowers followers