curl --request GET \
  --url https://api.example.com/api/agency-portal/Invitations/{linkingCode}

[
  {
    "id": 123,
    "customerName": "<string>",
    "createdById": 123,
    "createdByUserName": "<string>",
    "linkingCode": "<string>",
    "createdDate": "2023-11-07T05:31:56Z",
    "expiryDate": "2023-11-07T05:31:56Z",
    "nickName": "<string>",
    "firstName": "<string>",
    "emailAddress": "<string>"
  }
]