How to modify the perfectcanvasrequest with an existing fingerprint

[kakaxi]

Hi guys,

I have used FingerprintSwitcher with google register page perfectcanvasrequest data to get a fingerprint, and then created a Google account, one day later I want to modify the perfectcanvasrequest of this fingerprint, because I want to visit youtube website, youtube website has different perfectcanvasrequest data with google register page.

Any one know how to change it?

Please don't tell me use the youtube's perfectcanvasrequest data to create a new fingerprint, because I want to use the same fingerprint in this Google whole lifetime.

Thanks a lot!