This one’s potentially confusing as there are two petitions kicking around, one in Russian:
… and one in English (which, according to Boris Kaiatchev in the Classics International Facebook group, is specifically aimed at folks outside of Russia because one of the criteria affecting all this is ‘the degree of internationalization’):
The Russian one has a link to read the petition in Russian, and it seems specific to St Petersburg; the English one seems more general. It was suggested the English one might be better for folks like us to sign, but if one would like to sign the Russian one, here’s a guide (courtesy of Edith Hall) of what the various blanks on the side mean:
rogueclassicism 