[
  {
    "id": "item_001",
    "media_type": "image",
    "url": "https://placekitten.com/400/400?image=1",
    "caption_base": "Café en Malasaña con mi Pomerania blanco ☕✨",
    "tags": ["cafeteria", "pom", "diario"],
    "nivel_min": 1,
    "nivel_max": 5,
    "platforms": ["telegram"],
    "content_type": "public",
    "is_ppv": false,
    "price": 0,
    "exclusive": false,
    "best_hours_utc": [9, 18, 21],
    "sent_to_users": [],
    "global_usage_count": 0,
    "active": true,
    "created_at": "2026-02-11T09:00:00Z"
  }
]