Galaxy S7 device id is 18 digits, which is not allowed to generate the osig file

I have a Unity project can be build on GearVR,
But when I want to build it on S7, I found the length of deviceId for S7 is 18.
Oculus only accept the length of deviceId below 16.
https://developer.oculus.com/osig/

How can I run my project on S7?
Its very urgent, we have the demo at Samsung Exhibition !! Please help me!!