Data is added to P2SH address redeemscript. Addresses have no private key and are spent without any signature. Spend by adding pushscript to the transaction scriptsig.
{
"data": null,
"databytes": 0,
"btc_addr": "3Lu62SM4VKbdtAUhBiWXXdXHGpC2KkV9wj",
"ltc_addr": "MT7ELKm2SST4gfkbHbVsMGmgbWnUFziT7v",
"doge_addr": "ABeLmHQxZPUXnXrAbrAwmm9eyPa4NtseB7",
"bitcoin160": "d2b2ce27ca31b909b8102d89650cfad7307d0999",
"hexdata160": "",
"salt": null,
"scriptbytes": 3,
"redeemscript": "007551",
"pushscript": "0403007551"
}