I am not aware of a formalized way of specifying hypermedia (links) in JSON. If someone is aware of one, please share. But what I've chosen to do is mimic what you find in Atom with "link" metadata element.
"Ultimately, the right hacks are the ones that help people make sense of their world, and collectively improve it. And the right level is the level of human cognition, attention, intention, and desire."