{
  "input": {
    "type": "track",
    "userId": "user-id",
    "event": "some event",
    "timestamp": "2014",
    "properties": {
      "revenue": 19.99,
      "some-property": true
    }
  },
  "output": {
    "Billing Amount": 19.99,
    "some event - some-property": "true",
    "some event - revenue": "19.99",
    "_p": "user-id",
    "_t": 1388534400,
    "_k": "2b93bdf937c54fc7da2b5c6015c273bf3919c273",
    "_n": "some event",
    "_d": 1,
    "products": 0
  }
}