comEvent (address _user, uint256 _com, uint256 _price)
[topic 0]:0x109bb06eb8ff31e75c36b312f82f87a1c5ea5e5a28e29c871980265ba45b7ed7
0x000000000000000000000000b844da81d3376dbbd0ef01b482595c771b5f28100000000000000000000000000000000000000000000000000000000001312d00000000000000000000000000000000000000000000000000000000000bebc200