noob question, get json data into text inside game

Hi, I'm trying to get some json data from a remote web server, into my very basic game. I'm learning here so be gentle please :-) I have this URL/Json data: signawallet.notallmine.net/burst

i want to grab "guaranteedBalanceNQT":"77386000001" from that json string and just display it in my game and refresh this data every 20 seconds or so.. can someone give me a very specific example assuming i know no programming please? Like where to put said code in Construct (never used it before) and an example code.. Once i have this i can learn and hopefully get other values on my own.. Thanks all for your help!!

my json url was hacked up https://signawallet.notallmine.net/burst?requestType=getAccount&account=S-9GKY-KWQS-HTZG-HEK2X there is the proper link to see actual json response.. thanks again for any assistance.

no one? maybe you didnt want to click the api link, here is the json response i need to get into an array can someone help please, this is the only spot i have been stuck.

{"balanceNQT":"72787900001","unconfirmedBalanceNQT":"72787900001","forgedBalanceNQT":"0","guaranteedBalanceNQT":"72787900001","account":"18339269626061634110","accountRS":"S-9GKY-KWQS-HTZG-HEK2X","accountRSExtended":"S-NU58-Z4QR-XXKE-94DHH-0","publicKey":"0000000000000000000000000000000000000000000000000000000000000000","requestProcessingTime":0}