anchor.diff:                      "type": "coop"
                   },
                   "description": "Sample match for testing",
  +                "domain": "com.clanofthecloud.cloudbuilder.azerty",
                   "events": [],
  -                "game_id": "545a05d2fd2e2eab09077615",
                   "globalState": {},
                   "lastEventId": "548724ab612bff89c680e179",
                   "maxPlayers": 3,
  
positive.code: |_id|string| ID of the match, keep it safe to allow for joining it or fetching it later (read only)
  |creator|string| ID of the gamer who created the game (read only)
  |customProperties|json| JSON containing the user properties of the match (only one level, with numbers or strings as values)
  |description|string| description of the game (non localized)
  |globalState|json| global state of the match, which may be used to reconstruct the game locally (read only)
  |lastEventId|string| ID of the last event, which must be passed by any player who wishes to make a move (read only)
  
negative.code:                     "type": "coop"
                  },
                  "description": "Sample match for testing",
                  "domain": "com.clanofthecloud.cloudbuilder.azerty",
                  "events": [],
                  "globalState": {},
                  "lastEventId": "548723f773aa8afbc54bd7c9",
                  "maxPlayers": 3,
  