User Instance
GET /api/users/424/?format=api
{
"username": "omelette5055",
"gravatar": "//www.gravatar.com/avatar/ee711607279565dbc20f05051057dd63?d=wavatar",
"has_key": true
}GET /api/users/424/?format=api
{
"username": "omelette5055",
"gravatar": "//www.gravatar.com/avatar/ee711607279565dbc20f05051057dd63?d=wavatar",
"has_key": true
}