{
    "gcm_sender_id": "65353869518",
    "icons": [
      { "src": "/favicons/kupicom/favicon192.png", "type": "image/png", "sizes": "192x192" },
      { "src": "/favicons/kupicom/favicon512.png", "type": "image/png", "sizes": "512x512" }
    ]
  }