{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "eventStartData",
  "properties": {
    "p24": {
      "type": "boolean",
      "description": "Indication of the message addressee"
    },
    "type": {
      "type": "string",
      "description": "Indication of message type",
      "example": "start"
    }
  }
}