OptionalephemeralAn optional flag to mark message as ephemeral, i.e., not to be stored by Waku Store nodes.
OptionalmetaA function called when encoding messages to set the meta field.
The routing information for the message (cluster id, shard id, pubsubTopic)
OptionalsigAn optional private key to be used to sign the payload before encryption.
The symmetric key to encrypt the payload with.
The content topic to set on outgoing messages.