"SBON" is the community-created name for what appears to be a proprietary binary format, created by ChuckleFish for the game Starbound. It seems to be highly like JSON and potentially a derivative of JSON/BSON.
For some documentation, see the reverse engineering notes on SBON, available here.
Ensure you have at least node.js v7.6+, and then...
$ yarn add sbon
Reference the documentation.