base fee will goes up, otherwise goes down(min 1Gwei)
3. Matured #timelock FSN asset will move back to asset automatically when user send a transaction.
Only from/To address in the transaction will be triggered.
Only FSN asset will move back, other Fusion asset will not move.
基本费用会上涨，否则会下跌（最低1Gwei）
3.成熟