Retrieve personal user info by ID.

Example response

{
  "id": "ID",
  "email": "john.doe@gmail.com",
  "first_name": "John",
  "last_name": "Doe",
  "birth_date": "2025-11-30",
  "nationality": {
    "iso": "BE",
    "description": "Belgian"
  },
  "gender": "MALE",
  "language": {
    "iso": "nl-BE",
    "description": "Vlaams"
  },
  "athlete_license": {
    "federation": "VAL",
    "start_date": "2025-11-01",
    "end_date": "2026-10-31",
    "bib_number": 123
  },
  "club": {
    "id": "ID",
    "name": "demo name",
    "short_name": "DN",
    "country": "NL",
    "city": "Brussels",
    "email": "DN@atletiek.be"
  },
  "competitions": [
    {
      "name": "Avondmeeting",
      "start_time": "2025-10-10T14:00:00+02:00",
      "end_time": "2025-10-10T18:00:00+02:00",
      "organizer": "Belgian Athletics",
      "bib_number": 123,
      "first_name": "John",
      "last_name": "Doe",
      "club": {
        "id": "ID",
        "name": "demo name",
        "short_name": "DN",
        "country": "NL",
        "city": "Brussels",
        "email": "DN@atletiek.be"
      },
      "category": "SEN"
    }
  ]
}