sign: signer=v3.multichain-mpc-dev.testnet, payload=[30, 1, 2, 0, 4, 5, 6, 8, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31], path="test", key_version=0[33,192,59,73,123,105,200,76,201,171,97,32,226,14,63,10,82,250,85,70,223,94,189,128,12,98,159,105,243,81,107,230]