GET /user/me/encrypted_tile_tokens, response => https://gist.github.com/3753969

gistfile1.json

{
  ":self": "http://playup.com/user/me/encrypted_tile_tokens",
  ":type": "application/vnd.playup.collection+json",
  "items": [
    {
      ":type": "application/vnd.playup.encrypted_tile_token+json",
      ":self": "http://playup.com/encrypted_tile_tokens/46",
      "id": "tile_provider-46",
      "encrypted_token": "bawerqabsd"
    }
   ]
}

See response:
https://gist.github.com/3753969