authorChannelId property

The ID of the user that authored this message, this field is not always filled.

textMessageEvent - the user that wrote the message fanFundingEvent - the user that funded the broadcast newSponsorEvent - the user that just became a sponsor memberMilestoneChatEvent - the member that sent the message membershipGiftingEvent - the user that made the purchase giftMembershipReceivedEvent - the user that received the gift membership messageDeletedEvent - the moderator that took the action messageRetractedEvent - the author that retracted their message userBannedEvent - the moderator that took the action superChatEvent - the user that made the purchase superStickerEvent - the user that made the purchase pollEvent - the user that created the poll