layout?.user?.gr_data: 

offers_data: {
  "offers": {
    "72878": {
      "id": 72878,
      "state": "active",
      "type": "Category Quantity Ordered Order Interval",
      "duration": "permanent",
      "label": "Objemová sleva/GR ZCi",
      "allowances": [
        {
          "class": "discount",
          "type": "percentage_off",
          "label": "15.0%",
          "percentage_off": "0.15"
        }
      ],
      "triggers_labels": [
        "Objednávka: n nebo více",
        "Objednat do: n dnů"
      ],
      "products_triggers_label": "Objednejte 2+ z kategorie <a href=\"https://www.awgifts.cz/incense/incense-sticks/zci\" class=\"underline\">ZCi</a> a získejte slevu :percento",
      "note": "",
      "max_percentage_discount": "0.15",
      "category_qty_trigger": 2
    }
  },
  "number_offers": 1,
  "best_percentage_off": {
    "percentage_off": "0.15",
    "offer_id": 72878
  },
  "v": 1
}

bestOffer: {
  "id": 72878,
  "state": "active",
  "type": "Category Quantity Ordered Order Interval",
  "duration": "permanent",
  "label": "Objemová sleva/GR ZCi",
  "allowances": [
    {
      "class": "discount",
      "type": "percentage_off",
      "label": "15.0%",
      "percentage_off": "0.15"
    }
  ],
  "triggers_labels": [
    "Objednávka: n nebo více",
    "Objednat do: n dnů"
  ],
  "products_triggers_label": "Objednejte 2+ z kategorie <a href=\"https://www.awgifts.cz/incense/incense-sticks/zci\" class=\"underline\">ZCi</a> a získejte slevu :percento",
  "note": "",
  "max_percentage_discount": "0.15",
  "category_qty_trigger": 2
}