User Instance
GET /api/users/425/?format=api
{
"username": "CrazyFox",
"gravatar": "//www.gravatar.com/avatar/7d3f408568cfe790286582a5875ec551?d=wavatar",
"has_key": true
}GET /api/users/425/?format=api
{
"username": "CrazyFox",
"gravatar": "//www.gravatar.com/avatar/7d3f408568cfe790286582a5875ec551?d=wavatar",
"has_key": true
}