OP_SPEND
OP_DUP OP_HASH160 16721cacbddca02b10a3ee5142e5858d7d2043e6 OP_EQUALVERIFY OP_CHECKSIG
0 0 0 [byte code] e66c1aeba394ccda63c7644d68b4c771ef6548d9 OP_CALL
00