/usr/lib/linux-tools/4.4.0-59-lowlatency/usbipd is in linux-tools-4.4.0-59-lowlatency 4.4.0-59.80~14.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.4.0-59-lowlatency/../../linux-lts-xenial-tools-4.4.0-59/usbipd