Styjun

I have been trying to connect to my account with the Deribit testnet API and I can't figure out why my code is not working.

My Apps Script test function:

function callderibit() 
 var key = '2YZn85siaUf5A' 
 var secret = 'BTMSIAJ8IYQTAV4MLN88UAHLIUNYZ3HN' 
 var nonce = '1452237485895' ;

 var baseUrl = 'https://test.deribit.com';
 var action = '/api/v1/private/account'

 var string = 
 '_=' + nonce 
 + '&_ackey=' + key
 + '&_acsec=' + secret
 + '&_action='+ action;

 var hash = Utilities.computeDigest(Utilities.DigestAlgorithm.SHA_256, 
 string);

 var hash_encoded = Utilities.base64Encode(hash); 

 var signature = key + '.' + nonce + '.' + hash_encoded ;

 var options = 'headers': 'X-Deribit-Sig': signature


 // Call the API
 var response = UrlFetchApp.fetch(baseUrl + action , options )

 //Parse the JSON reply
 var json = response.getContentText();
 var data = JSON.parse(json);
 Logger.log(data);

This is the signature I am producing:
2YZn85siaUf5A.1452237485895.KOlc7ELGnz8cjYp614ONxZlngo/z2AHMEjVdlHlW9Oo=

The signature I sould be getting is this one:
2YZn85siaUf5A.1452237485895.LQctRklxPiJDHJj9ZYp78Epilx7N78crGghzr1pvNlI=

Bellow is the JS version of what I am trying to do, maybe someone can help me to translate it to gas.

Reference

let access_key = '2YZn85siaUf5A';
let secret_key = 'BTMSIAJ8IYQTAV4MLN88UAHLIUNYZ3HN';

function get_signature(action, arguments) 
let nonce = (new Date()).getTime().toString();

let signatureString = 
 '_=' + nonce 
 + '&_ackey=' + access_key
 + '&_acsec=' + secret_key
 + '&_action=' + action;

Object.keys(arguments).sort().forEach((key) => 
 signatureString += "&";
 signatureString += key;
 signatureString += "=";

 let value = arguments[key];
 if (Array.isArray(value)) 
 value = value.join('');
 

 signatureString += value.toString();
);

let signatureStringEncoded = new TextEncoder("utf-8").encode(signatureString 
);
let binaryHash = crypto.subtle.digest("SHA-256", signatureStringEncoded);
return (
 access_key + "." + 
 nonce.toString() + "." + 
 btoa(binaryHash)
)