API v9InterfacesAPIMessageActivityVersion: 0.37.104On this pageAPIMessageActivity https://discord.com/developers/docs/resources/channel#message-object-message-activity-structureIndex Propertiesparty_idtypeProperties optionalparty_idparty_id?: stringparty_id from a Rich Presence eventSee https://discord.com/developers/docs/rich-presence/how-to#updating-presence-update-presence-payload-fieldstypetype: MessageActivityTypeType of message activitySee https://discord.com/developers/docs/resources/channel#message-object-message-activity-types
https://discord.com/developers/docs/resources/channel#message-object-message-activity-structure