OutputProposed (index_topic_1bytes32 outputRoot, index_topic_2uint256 l2OutputIndex, index_topic_3uint256 l2BlockNumber, uint256 l1Timestamp)
[topic 0]:0xa7aaf2512769da4e444e3de247be2564225c2e7a8f74cfe528e46e17d24868e2
[topic 1]:0xfc8394709905c5d7c1618a58db6c10eb7dff226434d811a916c4b84cf58777d4
[topic 2]:0x0000000000000000000000000000000000000000000000000000000000000208
[topic 3]:0x000000000000000000000000000000000000000000000000000000000001e870
0x0000000000000000000000000000000000000000000000000000000067427aa2