AssignmentCreated (address _user, uint256 claimableAmount)
[topic 0]:0x511012b645823f32603c9e08b605492e787c9ea3913c21c20f2bf44624af4281
0x000000000000000000000000fac7f1ecde707e1f8844af4cfdaeabc7f46e161800000000000000000000000000000000000000000000006c6b935b8bbd400000