"participants": {
  "47AD2E1C-49D4-45DF-BD83-8398ACC7D8E2": {
    "@type": "Participant",
    "description": "A participant",
    "iCalendar": {
      "@type": "ICalComponent",
      "name": "participant",
      "properties": [
        [
          "uid",
          {},
          "text",
          "47AD2E1C-49D4-45DF-BD83-8398ACC7D8E2"
        ]
      ]
    }
  }
}