OutputProposed (index_topic_1bytes32 outputRoot, index_topic_2uint256 l2OutputIndex, index_topic_3uint256 l2BlockNumber, uint256 l1Timestamp)
[topic 0]:0xa7aaf2512769da4e444e3de247be2564225c2e7a8f74cfe528e46e17d24868e2
[topic 1]:0xb3683aafecfe10adde9664c76d6c4bd2c7a83c2d6ab31ae1a172a642b48730ab
[topic 2]:0x000000000000000000000000000000000000000000000000000000000000bbce
[topic 3]:0x0000000000000000000000000000000000000000000000000000000000840d8c
0x00000000000000000000000000000000000000000000000000000000673f21c2