PieceCreated (index_topic_1uint256 pieceId, index_topic_2address sponsor, tuple metadata, tuple[] creators)
[topic 0]:0x3d04d872487758a9d5e5c044a27b687d1199a5ab692d9c0d3ad55464eab2e5a2
[topic 1]:0x0000000000000000000000000000000000000000000000000000000000000148
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