{
  "actor": {
    "mbox": "mailto:conformancetest@tincanapi.com",
    "objectType": "Agent"
  },
  "verb": {
    "id": "http://tincanapi.com/conformancetest/verbid",
    "display": {
      "en-US": "test"
    }
  },
  "object": {
    "id": "http://tincanapi.com/conformancetest/activityid",
    "objectType": "Activity"
  },
  "attachments": [
    {
      "usageType": "http://id.tincanapi.com/attachment/supporting_media",
      "display": {
        "en-US": "Text attachment"
      },
      "contentType": "text/plain",
      "length": 18,
      "sha2": "bd1a58265d96a3d1981710dab8b1e1ed04a8d7557ea53ab0cf7b44c04fd01545"
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}