OptionalauthorOptionalcontentOptionaldeletedtrue if the message serves as a placeholder for one that has been deleted.
OptionalidThe unique ID of the message.
OptionalmetadataOptionalquotedThe quoted message is currently only available for WhatsApp and Web Messenger formResponse messages.
OptionalreceivedA datetime string with the format YYYY-MM-DDThh:mm:ss.SSSZ representing when Sunshine Conversations received the message.
Optionalsource
The content of the message.