[
  {
    "id": 5,
    "titulo": "Imagen avatar",
    "url": "https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcRCndPyhcWNx7wItYiUbA0tq2akXGzBv_xnhovC3dXQhO0qGy9o",
    "tipo": "imagen"
  },
  {
    "titulo": "otro video x",
    "url": "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ForBiggerJoyrides.mp4",
    "tipo": "video",
    "id": 6
  }
]