RewardRateUpdated (index_topic_1address rewardToken, uint256 oldRate, uint256 newRate)
[topic 0]:0x225033f2ea5486463cbb49ceda2823be38daddc85031ce2c637e7ad0950bc85a
0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000