{
  "sessionId": "test-simple",
  "letters": [
    {
      "index": 0,
      "format": "a4",
      "font": "tilda",
      "text": "Hallo Max Mustermann,\n\ndein persönlicher Gutscheincode lautet: SAVE20\n\nViele Grüße",
      "placeholders": {}
    }
  ]
}