This article explains how to:
Set up OAuth provider with JWT Bearer grant type and integrate with Box to make Outbound REST call
Please note this is just an example configuration that can used as a guideline to configure and ServiceNow is not responsible for any API information from the 3rd party API
Any information regarding 3rd party API ( for example in this case BOX) should be obtained from the Vendor documentation/Support.
On BOX end
On ServiceNow Instance end