{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/RecipientRef",
  "title": "RecipientRef",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The ID of the recipient to notify."
    }
  }
}