WithdrawAsset (index_topic_1address sponsor, address asset, index_topic_3address onBehalfOf, uint256 amount, uint256 timestamp)
[topic 0]:0x31c6c2b083b6c6fb9c8345de5c29efda3ef312a42d1bc0d4a3029465080809c1
0x00000000000000000000000083e6aebe17f41b17f99f99d0c9234cf9e5e4c9c40000000000000000000000000000000000000000000000000de0b6b3a76400000000000000000000000000000000000000000000000000000000000067473a8c