User Instance
GET /api/users/2/?format=api
{
"username": "SupayrPoney",
"gravatar": "//www.gravatar.com/avatar/3e14c1cf1cf7f72c2cfcdb1c64678b13?d=wavatar",
"has_key": false
}GET /api/users/2/?format=api
{
"username": "SupayrPoney",
"gravatar": "//www.gravatar.com/avatar/3e14c1cf1cf7f72c2cfcdb1c64678b13?d=wavatar",
"has_key": false
}