CollateralAmountUpdated (uint256 vaultID, uint256 collateralAmount, uint8 isIncrease)
[topic 0]:0x722cb71fa87c947148cefc06dd890af5802a6a00207c5ddecf1191bf71ce3cd4
0x0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000155d9a757e437e420000000000000000000000000000000000000000000000000000000000000000001