Looking for help solving a particularly difficult Invisible ReCAPTCHA V2

Hello everyone

Does anyone have some experience solving Invisible ReCaptcha V2 ?
I was doing fine solving ReCaptcha V2 and even the invisible one (Google demo page for example) using 2captcha.com, but now I ran into a situation where the callback is obfuscated, even not present at all (no data-callback attribute) on the Spotify Login page.

Is somebody willing to guide me/help me even learning to solve this one ?

Thanks a lot

Paul