{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "command": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80
    },
    "payload": {}
  },
  "required": [
    "command",
    "payload"
  ],
  "additionalProperties": false
}