User Instance
GET /api/users/186/?format=api
{
"username": "Xayling",
"gravatar": "//www.gravatar.com/avatar/f8d980c8964ab9809d3fe253e017c229?d=wavatar",
"has_key": false
}GET /api/users/186/?format=api
{
"username": "Xayling",
"gravatar": "//www.gravatar.com/avatar/f8d980c8964ab9809d3fe253e017c229?d=wavatar",
"has_key": false
}