/usr/lib/x86_64-linux-gnu/libsoci_firebird.so.3.2 is in libsoci-firebird3.2 3.2.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libsoci_firebird.so.3.2.3
/usr/lib/x86_64-linux-gnu/libsoci_firebird.so.3.2.3