Function: mintItem (string tokenURI, bool isUnseal, uint256 deadline, bytes validatorSig)
MethodID: 0xfcbb6cf5
[0]: 0000000000000000000000000000000000000000000000000000000000000080
[1]: 0000000000000000000000000000000000000000000000000000000000000000
[2]: 000000000000000000000000000000000000000000000000000000000000007b
[3]: 00000000000000000000000000000000000000000000000000000000000000c0
[4]: 000000000000000000000000000000000000000000000000000000000000000e
[5]: 746573742e746573742e74657374000000000000000000000000000000000000
[6]: 0000000000000000000000000000000000000000000000000000000000000041
[7]: 8bb2dd684085c52985c5a02f9dcccb96a473371616904afb5916b7ac69e9fe21
[8]: 4922f796867200581dfa656f4f81c4b5bb0cd55edea06f51ab3a4c7f50a60203
[9]: 1b00000000000000000000000000000000000000000000000000000000000000