OutputProposed (index_topic_1bytes32 outputRoot, index_topic_2uint256 l2OutputIndex, index_topic_3uint256 l2BlockNumber, uint256 l1Timestamp)
[topic 0]:0xa7aaf2512769da4e444e3de247be2564225c2e7a8f74cfe528e46e17d24868e2
[topic 1]:0x9724cfe7dd7510630a717521c3a0426041ccd5acf9f9bae2e22e47567d7b4411
[topic 2]:0x0000000000000000000000000000000000000000000000000000000000001998
[topic 3]:0x00000000000000000000000000000000000000000000000000000000003bfe98
0x00000000000000000000000000000000000000000000000000000000674444f4