Encode ABI parameters into hex calldata. Keep the parameter list in ABI format and use a JSON array for the values.
0x000000000000000000000000000000000000000000000000000000000000dead0000000000000000000000000000000000000000000000000de0b6b3a76400000000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000001548656c6c6f2066726f6d204120546f6f6c20466f720000000000000000000000