Participant.Joined

The Participant.Joined event is sent when a new participant joined the conference:

{
  "eventType": "Participant.Joined",
  "conference": {
    "confId": "00000000-aaaa-bbbb-cccc-000000000000",
    "confAlias": "sample_meeting"
  },
  "participant": {
    "userId": "00000000-aaaa-bbbb-cccc-000000000001"
  }
}