/usr/lib/x86_64-linux-gnu/libjsonrpccpp-client.so is in libjsonrpccpp-dev 0.6.0-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libjsonrpccpp-client.so.0
/usr/lib/x86_64-linux-gnu/libjsonrpccpp-client.so.0