curl --request GET \
  --url https://m2m-backend-qa.up.railway.app/partner/users/{userId} \
  --header 'X-API-Key: <api-key>'

{
  "success": true,
  "data": {
    "userId": "user_acme_x1y2z3",
    "referenceId": "user-12345",
    "name": {
      "firstName": "Juan",
      "secondName": "Carlos",
      "lastName": "Pérez",
      "secondLastName": "García"
    },
    "cipStatus": "verified",
    "blocked": false,
    "createdAt": "2026-02-10T12:00:00.000Z",
    "updatedAt": "2026-02-10T12:05:00.000Z",
    "stats": {
      "totalLinks": 5,
      "completedOperations": 3,
      "lastActivityAt": "2026-02-10T12:00:00.000Z"
    },
    "idType": "INE",
    "idNumber": "****6789",
    "dob": "1990-05-15",
    "cipVerifiedAt": "2026-02-10T14:00:00.000Z",
    "blockedAt": "<string>",
    "blockedReason": "<string>",
    "userDataSources": {
      "name.firstName": "link",
      "idNumber": "data_request"
    }
  }
}