| Name | Type | Description | Notes |
|---|---|---|---|
| messageId | String | Platform message ID (dm_event_id) | [optional] |
| conversationId | String | Platform conversation ID (dm_conversation_id) | [optional] |
| participantId | String | Twitter numeric user ID of the recipient | [optional] |
| participantName | String | Display name of the recipient | [optional] |
| participantUsername | String | Twitter username of the recipient | [optional] |