callback({
  "database_resource_url": "http://wedata.net/databases/ShortUrlServices",
  "created_at": "2010-12-06T22:09:53+09:00",
  "name": "fwd4.me",
  "data": {
    "domain": "fwd4\\.me"
  },
  "updated_at": "2010-12-07T13:02:47+09:00",
  "created_by": "furyu-tei",
  "resource_url": "http://wedata.net/items/40102?rev=58781"
})