{
  "users": [
    {
      "id": "u001",
      "username": "alice_johnson",
      "email": "alice@example.com",
      "registration_date": "2024-03-15",
      "last_login": "2025-05-06T10:30:00Z",
      "profile": {
        "first_name": "Alice",
        "last_name": "Johnson",
        "age": 28,
        "location": "New York, USA"
      },
      "preferences": {
        "theme": "dark",
        "notifications": true,
        "language": "en"
      }
    },
    {
      "id": "u002",
      "username": "bob_smith",
      "email": "bob@example.com",
      "registration_date": "2024-01-22",
      "last_login": "2025-05-05T14:45:00Z",
      "profile": {
        "first_name": "Bob",
        "last_name": "Smith",
        "age": 35,
        "location": "London, UK"
      },
      "preferences": {
        "theme": "light",
        "notifications": false,
        "language": "en"
      }
    },
    {
      "id": "u003",
      "username": "maria_garcia",
      "email": "maria@example.com",
      "registration_date": "2024-07-08",
      "last_login": "2025-05-06T09:15:00Z",
      "profile": {
        "first_name": "Maria",
        "last_name": "Garcia",
        "age": 31,
        "location": "Barcelona, Spain"
      },
      "preferences": {
        "theme": "dark",
        "notifications": true,
        "language": "es"
      }
    }
  ],
  "total_users": 3,
  "active_users_last_week": 2
}