{
  "type": "object",
  "name": "AdditionalData",
  "properties": {
    "key1": {
      "type": "string"
    },
    "key2": {
      "type": "string"
    }
  },
  "required": [
    "key1",
    "key2"
  ],
  "$schema": "https://json-structure.org/draft/2020-12/schema"
}