curl --request GET \
  --url https://test.didxtech.com/consumer-onboarding/api/users/by-external-identifier/{externalIdentifier} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "123e4567-e89b-12d3-a456-426614174000",
    "username": "johndoe",
    "email": "[email protected]",
    "firstName": "John",
    "lastName": "Doe",
    "enabled": true
  },
  "links": {
    "self": "<string>",
    "first": "<string>",
    "last": "<string>",
    "prev": "<string>",
    "next": "<string>",
    "related": "<string>"
  },
  "meta": {},
  "errors": [
    {
      "detail": "<string>",
      "id": "<string>",
      "status": "<string>",
      "code": "<string>",
      "title": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>"
      },
      "meta": {}
    }
  ]
}