OutputProposed (index_topic_1bytes32 outputRoot, index_topic_2uint256 l2OutputIndex, index_topic_3uint256 l2BlockNumber, uint256 l1Timestamp)
[topic 0]:0xa7aaf2512769da4e444e3de247be2564225c2e7a8f74cfe528e46e17d24868e2
[topic 1]:0x6c97426d8ff4e02e8149437070c13ad59413bf351e7a5bf55a9c456f4ff096fc
[topic 2]:0x00000000000000000000000000000000000000000000000000000000000002f8
[topic 3]:0x00000000000000000000000000000000000000000000000000000000000164b8
0x000000000000000000000000000000000000000000000000000000006734a240