markUnread
Marks the specified channel as unread.
Parameters
channelType
Type of the channel.
channelId
Id of the channel.
messageId
Id of the message.
Marks all messages in the channel as unread that were created after the specified timestamp.
Parameters
channelType
Type of the channel.
channelId
Id of the channel.
timestamp
The timestamp used to find the first message to mark as unread.