City card validity period display

Hi to all,
I have a problem. I have written a code to display the validity period of the city card. I used RESTful for this. How to make it display validity date if the card with the number eg: 0000813830. The number is the first item from the json file

sensor:
  - platform: rest
    name: ticket
    resource: https://ckan.multimediagdansk.pl/dataset/c24aa637-3619-4dc2-a171-a23eec8f2172/resource/5552f5f2-1e3f-4aa4-9042-2853faccb418/download/wazne_bilety.json
    value_template: '{{  value_json[karty].[4269111687].[WaznyDo] }}'

City card¿ Don’t see that one here https://www.home-assistant.io/lovelace/

If it is a 3rd party card, perhaps look at posting on their GitHub.

Use the Markdown card with a template to show the sensor value.

Something like:

type: markdown
content: >
  {{ states.sensor.ticket.state }}
title: City Card