{
  "@context": "<string>",
  "@id": "<string>",
  "@type": "<string>",
  "id": 123,
  "invoiceNumber": 123,
  "user": {
    "@context": "<string>",
    "@id": "<string>",
    "@type": "<string>",
    "id": 123,
    "firstName": "<string>",
    "lastName": "<string>",
    "email": "jsmith@example.com",
    "fullName": "<string>",
    "companyIdentifier": "<string>",
    "companyName": "<string>",
    "companyAddress": "<string>",
    "companyRegNo": "<string>"
  },
  "profileExternal": {
    "@context": "<string>",
    "@id": "<string>",
    "@type": "<string>",
    "id": 123,
    "name": "<string>",
    "email": "<string>",
    "companyIdentifier": "<string>",
    "companyName": "<string>",
    "companyAddress": "<string>",
    "customFieldValues": [
      "https://example.com/"
    ],
    "professionOrganisationRole": "<string>",
    "companyRegNo": "<string>",
    "status": "https://example.com/",
    "lastStatusUpdate": "2023-11-07T05:31:56Z",
    "fullName": "<string>",
    "firstName": "<string>",
    "lastName": "<string>"
  },
  "amount": 123,
  "invoicedFor": "<string>",
  "type": "<string>",
  "body": "<string>",
  "status": "<string>",
  "internalNotes": "<string>",
  "dateCreated": "2023-11-07T05:31:56Z",
  "dateUpdated": "2023-11-07T05:31:56Z",
  "invoiceDate": "2023-11-07T05:31:56Z",
  "membershipStartDate": "2023-11-07T05:31:56Z",
  "membershipEndDate": "2023-11-07T05:31:56Z",
  "isMembership": true,
  "series": "<string>"
}