{
  "input": {
    "type": "track",
    "userId": "user-id",
    "event": "Completed Order",
    "timestamp": "2014",
    "properties": {
      "revenue": 19.99,
      "some-property": true,
      "time": "2014-01-01",
      "list": [1, 2, 3],
      "products": [
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      ]
    },
    "context": {
      "app": {
        "name": "web",
        "version": "1.1"
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  },
  "output": {
    "Billing Amount": 19.99,
    "Completed Order - list": "1,2,3",
    "Completed Order - products": "[object Object],[object Object]",
    "Completed Order - revenue": "19.99",
    "Completed Order - some-property": "true",
    "Completed Order - time": 1388534400,
    "_p": "user-id",
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    "_k": "2b93bdf937c54fc7da2b5c6015c273bf3919c273",
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    "_d": 1,
    "products": 2
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}