ad {
  adslot {
    id: 1
    max_cpm_micros: 1581987
    billing_id: 32132054378
  }
  click_through_url: "google.com"
  attribute: 47
  attribute: 8
  buyer_creative_id: "test_creative_id_285893"
  advertiser_name: "Google"
  native_ad {
    headline: "Luxury Mars Cruises"
    body: "Visit the planet in a luxury spaceship."
    call_to_action: "Book today"
    advertiser: "Galactic Luxury Cruises"
    image {
      url: "https://native.test.com/image?id=123456"
      width: 800
      height: 800
    }
    logo {
      url: "https://native.test.com/logo?id=123456"
      width: 200
      height: 200
    }
    price: "\342\202\254106.40"
    click_link_url: "https://www.google.com"
  }
  impression_tracking_url: "https://test.com/imp?id=123456"
  impression_tracking_url: "https://test.com/imp?id=123456"
  ad_choices_destination_url: "https://test.com/preferences"
  event_notification_token: "token"
}
processing_time_ms: 20