Incident Participants

{
  "participant_type": "observer",
  "user": {
    "email": "lisa@incident.io",
    "id": "01FCNDV6P870EA6S7TK1DSYDG0",
    "name": "Lisa Karlin Curtis",
    "role": "owner",
    "slack_user_id": "U02AYNF2XJM"
  }
}