/usr/lib/x86_64-linux-gnu/libpynac.so.2 is in libpynac2 0.6.91-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpynac.so.2.5.0
/usr/lib/x86_64-linux-gnu/libpynac.so.2.5.0