extract json data

Hello, 

I would like to retrieve the number just after today's date (3230) in the following frame, which I retrieved in jason format

{"result":{"2025-09-08":3230,"2025-09-09":2469},"message":{"code":0,"type":"success","text":"","pid":"2M1I3jhg","info":{"latitude":50.0021,"longitude":4.9154,"distance":0,"place":"Rue de Bourseigne-Vieille 12, 5575 Sart-Custinne, Belgium","timezone":"Europe/Brussels","time":"2025-09-08T20:26:18+02:00","time_utc":"2025-09-08T18:26:18+00:00"},"ratelimit":{"zone":"IP 2a02:a03f:a4ca:3c01:e65f:1ff:fed5:a3c6","period":3600,"limit":12,"remaining":10}}}.

I tried with a string as below but it don'work

The next step is to adapt it because the day's date is chanching every day...

Thank you