...
description (required)
Arbitrary display description for the share
json (required, unless POST in which case the share JSON should be the body)
JSON object
Example
Method.Get
http://infinite.ikanow.com/api/social/share/add/json/type/title/description?json=%7B%22userid%22%3A%224f5e189ada7f00000000510f%22%2C%22settings%22%3A%7B%22maximized%22%3Afalse%2C%22lastTabOpen%22%3A2%7D%7D
...