ChannelUpdatedByUserEvent
data class ChannelUpdatedByUserEvent( val type: String, val createdAt: Date, val rawCreatedAt: String, val cid: String, val channelType: String, val channelId: String, val user: User, val channel: Channel, val channelLastMessageAt: Date?, val message: Message?) : CidEvent, UserEvent, HasChannel
Triggered when a channel is updated by user. Could contain system message.