actionAddToCart

dataLayer.push({
  iframe: {
    pageData: {
      url: "https://experiencetraveltours.regiondo.es/checkout/cart/index/bookingwidget/1",
      title: "Carrito de la compra"
    },
    data: {
      value: 28,
      currency: "EUR",
      items: [
        {
          id: "158111",
          name: "Autobús turístico de Madrid “ THE YELLOW BUS”",
          brand: "Experience Travel Tours",
          category: "",
          variant: "Entrada general 2022 - Adulto",
          quantity: 1,
          price: 14
        }
      ]
    }
  },
  event: "iframe.actionAddToCart",
  gtm.uniqueEventId: 28
})