/usr/lib/x86_64-linux-gnu/libubuntu-upload-manager-common.so is in libubuntu-upload-manager-common-dev 1.2+16.04.20160408-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libubuntu-upload-manager-common.so.1