Get Trust Center viewer

curl --request GET \
  --url https://api.vanta.com/v1/trust-centers/{slugId}/viewers/{viewerId} \
  --header 'Authorization: Bearer <token>'

{
  "id": "a2f7e1b9d0c3f4e5a6c7b8d9",
  "email": "exampleviewer@company.com",
  "name": "Example Viewer",
  "companyName": "Viewer Company, Inc.",
  "resourceIds": null,
  "accessLevel": "FULL_ACCESS",
  "ndaInfo": null,
  "externalServiceAssociations": [
    {
      "service": "SALESFORCE",
      "id": "0032S000062DfqnQBG",
      "objectType": "Salesforce Contact"
    }
  ],
  "creationDate": "2020-01-01T00:00:00.000Z",
  "updatedDate": "2020-01-01T00:00:00.000Z",
  "expirationDate": null,
  "addedByUser": null,
  "customerTrustAccountId": null
}