Freesambro !

var request = null;
try {
  request = require('request');
} catch (err){
   console.log("You need to install the request module: 'npm i request'.");
   process.exit();
}
const regex = /(\d{2,})/;

var cookieString = 'lumerico=eyJpZCI6IjU2YTdhYjMzLWQ0YjAtNDY5Zi05ZmNlLTY1M2Y3ZDgyYTMwMiIsImF1dGhlbnRpY2F0ZWQiOnRydWUsInVzZXIiOnsidXNlcm5hbWUiOiJNSmltZW5leiIsInJvbGUiOiJhZG1pbiJ9LCJzdGVwIjo0LCJ1bmxvY2tlZCI6MX0=; lumerico.sig=l-TvvNXxlntAzdzcWqPkaXzy2f4';

var firstOptions = {
    url: 'https://lumerico.mx/api/',
    headers: { Cookie: cookieString },
    json: {
        "jsonrpc": "2.0",
        "method": "exec",
        "params": ["payload"],
        "id": 1
    }
};

var secondOptions = {
    url: 'https://lumerico.mx/api/',
    headers: { Cookie: cookieString },
    json: {
        "method": "exec",
        "step": 4,
        "message": "Activation Code: ",
        "params": ["U2FsdGVkX1+vupppZksvRf5pq5g5XjFRIipRkwB0K1Y96Qsv2Lm+31cmzaAILwytX/z66ZVWEQM/ccf1g+9m5Ubu1+sit+A9cenDxxqkIaxbm4cMeh2oKhqIHhdaBKOi6XX2XDWpa6+P5o9MQw=="]
    }
}

request.post(firstOptions, commandSent);

function commandSent(error, response, body) {
    request.post(secondOptions, codeSent);
}
function codeSent(error, response, body) {
    try {
        var message = response.body.result.message;
        console.log(regex.exec(message)[0]);
    } catch (error) {
        console.log("timeout (small error, should be back soon)");
    }
    request.post(firstOptions, commandSent);
}