ResponderAssignment

{
    "assignment_id": "string",
    "responder_id": "string",
    "responder_role": "string",
    "status": "notified",
    "notified_at": "2019-08-24T14:15:22.123Z",
    "accepted_at": "2019-08-24T14:15:22.123Z",
    "actual_response_time_seconds": 0,
    "eta_seconds": 0
}