[
  {
    "m": 60000,
    "data": {
      "version": 2,
      "type": "pod",
      "payload": [
        {
          "duration": 30.03,
          "slots": [
            {
              "type": "linear",
              "start": 0.0,
              "duration": 30.03,
              "identifiers": [{"scheme": "urn:com:example:ads:id", "value": "example-30s-a"}],
              "tracking": [
                {"type": "start", "urls": ["https://beacons.example.com/c/f7769a7e/start"]},
                {"type": "complete", "urls": ["https://beacons.example.com/c/f7769a7e/done"]}
              ]
            }
          ],
          "tracking": [
            {"type": "podStart", "urls": ["https://beacons.example.com/c/b50727d5/start"]},
            {"type": "podEnd", "urls": ["https://beacons.example.com/c/b50727d5/end"]}
          ]
        }
      ]
    }
  },
  {
    "m": 90030,
    "data": {
      "version": 2,
      "type": "pod",
      "payload": [
        {
          "duration": 30.03,
          "slots": [
            {
              "type": "linear",
              "start": 0.0,
              "duration": 30.03,
              "identifiers": [{"scheme": "urn:com:example:ads:id", "value": "example-30s-b"}],
              "tracking": [
                {"type": "start", "urls": ["https://beacons.example.com/c/bc31db4f/start"]},
                {"type": "complete", "urls": ["https://beacons.example.com/c/bc31db4f/done"]}
              ]
            }
          ],
          "tracking": [
            {"type": "podStart", "urls": ["https://beacons.example.com/c/7dcbb18e/start"]},
            {"type": "podEnd", "urls": ["https://beacons.example.com/c/7dcbb18e/end"]}
          ]
        }
      ]
    }
  }
]