Does what I wanted it to do.
Even for developers it's usefull outside of the API as it allows to inspect what Is going on. But maybe the one or another server admin may have a good use for it
is good but I can't find out how to do nbt of {SkullOwner:{Id:"198765c1-c236-4c7d-8555-d0dbacfcb123",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMTc2MmExNWIwNDY5MmEyZTRiM2ZiMzY2M2JkNGI3ODQzNGRjZTE3MzJiOGViMWM3YTlmN2MwZmJmNmYifX19"}]}}}