Create DM conversation

curl --request POST \
  --url https://api.x.com/2/dm_conversations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "message": {
    "text": "<string>",
    "attachments": [
      {
        "media_id": "1146654567674912769"
      }
    ]
  },
  "participant_ids": [
    "2244994945"
  ]
}
'

{
  "data": {
    "dm_conversation_id": "123123123-456456456",
    "dm_event_id": "1146654567674912769"
  },
  "errors": [
    {
      "title": "<string>",
      "type": "<string>",
      "detail": "<string>",
      "status": 123
    }
  ]
}