State: The state of the quest. Possible values are: - "UPCOMING": The quest is upcoming. The user can see the quest, but cannot accept it until it is open. - "OPEN": The quest is currently open and may be accepted at this time. - "ACCEPTED": The user is currently participating in this quest. - "COMPLETED": The user has completed the quest. - "FAILED": The quest was attempted but was not completed before the deadline expired. - "EXPIRED": The quest has expired and was not accepted. - "DELETED": The quest should be deleted from the local database.