inventoryItem {
  "url": string,
  "itemType": "Music" | "Video" | "Game" | "AvatarItem" | "Subscription" | "DLC" | "Consumable" | ...,
  "obtained": DateTime,
  "beginDate": DateTime,
  "endDate": DateTime,
  "state": "Unavailable" | "Available" | "Suspended" | "Expired",
  "trial": true,
  "trialTimeRemaining":"23:12:14",
  ("consumable": {"url": string, "quantity": int})
}

consumableInventoryItem {
  "url": string,
  "quantity": int
}