/usr/lib/x86_64-linux-gnu/libgtkdatabox-0.9.3.so.0 is in libgtkdatabox-0.9.3-0 1:0.9.3.0+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgtkdatabox-0.9.3.so.0.0.0
/usr/lib/x86_64-linux-gnu/libgtkdatabox-0.9.3.so.0.0.0