The item quantity has been decreased by 1 via ConsumeItem API.
512
k_ESteamItemNoTrade
Item status flags - these flags are permanently attached to specific item instances This item is account-locked and cannot be traded or given away.
1
k_ESteamItemRemoved
Action confirmation flags - these flags are set one time only, as part of a result set The item has been destroyed, traded away, expired, or otherwise invalidated
