curl --request POST \
  --url https://api.virtuoussoftware.com/api/Volunteer/Query \
  --header 'Authorization: Bearer <token>'

{
  "list": [
    {
      "id": 0,
      "volunteerUrl": "string",
      "createDateTimeUtc": "dateTime",
      "createdByUser": "string",
      "modifiedDateTimeUtc": "dateTime",
      "modifiedByUser": "string",
      "contactId": 0,
      "contactIndividualId": 0,
      "contactUrl": "string",
      "displayName": "string",
      "firstName": "string",
      "avatarUrl": "string",
      "primaryPhone": "string",
      "primaryEmail": "string",
      "totalHours": 0,
      "timesVolunteered": 0,
      "volunteerAttendanceUrl": "string",
      "volunteerOpportunityId": 0,
      "volunteerOpportunityUrl": "string"
    }
  ],
  "total": 0
}