Function: mintItem (string tokenURI, bool isUnseal, uint256 deadline, bytes validatorSig)
MethodID: 0xfcbb6cf5
[0]: 0000000000000000000000000000000000000000000000000000000000000080
[1]: 0000000000000000000000000000000000000000000000000000000000000001
[2]: 0000000000000000000000000000000000000000000000000000000002f87ccc
[3]: 00000000000000000000000000000000000000000000000000000000000000e0
[4]: 0000000000000000000000000000000000000000000000000000000000000034
[5]: 4d657461646174612f50633f726567696f6e3d6b6f72656126616374696f6e49
[6]: 643d343139313734363030333430333431313337000000000000000000000000
[7]: 0000000000000000000000000000000000000000000000000000000000000041
[8]: 5d2859028c383270997f5cb65501f58b8503c5c9010916dae0e617751844c074
[9]: 527f7b7bff6f39d514a564c09448128973d483315b743efac70bcedde102baf7
[10]: 1b00000000000000000000000000000000000000000000000000000000000000