SOURCE

//msg = [38,0,202,0,9,0,2,128,9,0,12,186,5,0,7,65,43,13,41,15,13,42,41,15,41,14,14,41,15,41,41,14,15,41,14,41,15,41,14,124,9,132,41,15,40,15,13,42,41,15,42,13,14,42,14,41,41,15,15,40,14,41,14,42,13,0,1,10,41,14,43,13,13,42,42,14,41,15,14,41,13,42,42,14,13,42,15,41,14,41,15,0,1,9,42,13,42,13,15,41,41,14,42,14,14,41,15,41,41,15,14,41,13,42,15,41,13,55,15,196,41,14,42,14,13,42,41,15,42,14,13,42,13,42,42,14,13,42,13,42,15,41,14,0,1,9,41,14,42,14,13,42,42,14,42,13,15,41,13,42,42,14,13,42,14,42,13,42,13,0,1,10,42,13,42,14,14,42,42,13,42,14,14,41,13,42,42,15,13,41,15,41,13,42,14,0,5,29,8,0,2,135,10,0,13,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
msg = [38,0,182,0,41,15,40,15,14,41,41,15,41,14,15,41,13,42,42,14,13,42,14,42,13,42,14,0,1,10,42,13,42,15,13,41,42,15,41,13,15,41,14,41,43,13,13,42,14,42,13,42,15,0,1,9,41,15,40,15,14,41,42,14,41,14,14,42,14,41,42,14,13,43,14,41,13,42,15,0,1,9,43,13,41,15,12,42,41,15,41,14,15,41,13,42,41,15,13,42,14,42,14,41,15,0,1,8,43,14,41,13,15,41,41,14,42,14,13,42,15,41,41,15,14,41,14,42,13,42,14,0,1,9,42,14,42,14,13,42,41,15,41,14,14,42,14,41,41,15,14,41,15,41,13,42,14,0,1,10,41,15,40,16,12,42,42,15,40,15,13,42,14,41,42,15,12,42,15,41,14,41,14,0,13,5,0,0];


var temp = msg.map(item=>{
    return item.toString(16);
})
console.log(temp);

str = temp.join("");
console.log(str);

var base = new Base64();  
var result = base.encode(str);
console.log(result);








function Base64() {  

    // private property  
    _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";  

    // public method for encoding  
    this.encode = function (input) {  
        var output = "";  
        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;  
        var i = 0;  
        input = _utf8_encode(input);  
        while (i < input.length) {  
            chr1 = input.charCodeAt(i++);  
            chr2 = input.charCodeAt(i++);  
            chr3 = input.charCodeAt(i++);  
            enc1 = chr1 >> 2;  
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);  
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);  
            enc4 = chr3 & 63;  
            if (isNaN(chr2)) {  
                enc3 = enc4 = 64;  
            } else if (isNaN(chr3)) {  
                enc4 = 64;  
            }  
            output = output +  
            _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +  
            _keyStr.charAt(enc3) + _keyStr.charAt(enc4);  
        }  
        return output;  
    }  

    // public method for decoding  
    this.decode = function (input) {  
        var output = "";  
        var chr1, chr2, chr3;  
        var enc1, enc2, enc3, enc4;  
        var i = 0;  
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");  
        while (i < input.length) {  
            enc1 = _keyStr.indexOf(input.charAt(i++));  
            enc2 = _keyStr.indexOf(input.charAt(i++));  
            enc3 = _keyStr.indexOf(input.charAt(i++));  
            enc4 = _keyStr.indexOf(input.charAt(i++));  
            chr1 = (enc1 << 2) | (enc2 >> 4);  
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);  
            chr3 = ((enc3 & 3) << 6) | enc4;  
            output = output + String.fromCharCode(chr1);  
            if (enc3 != 64) {  
                output = output + String.fromCharCode(chr2);  
            }  
            if (enc4 != 64) {  
                output = output + String.fromCharCode(chr3);  
            }  
        }  
        output = _utf8_decode(output);  
        return output;  
    }  

    // private method for UTF-8 encoding  
    _utf8_encode = function (string) {  
        string = string.replace(/\r\n/g,"\n");  
        var utftext = "";  
        for (var n = 0; n < string.length; n++) {  
            var c = string.charCodeAt(n);  
            if (c < 128) {  
                utftext += String.fromCharCode(c);  
            } else if((c > 127) && (c < 2048)) {  
                utftext += String.fromCharCode((c >> 6) | 192);  
                utftext += String.fromCharCode((c & 63) | 128);  
            } else {  
                utftext += String.fromCharCode((c >> 12) | 224);  
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);  
                utftext += String.fromCharCode((c & 63) | 128);  
            }  

        }  
        return utftext;  
    }  

    // private method for UTF-8 decoding  
    _utf8_decode = function (utftext) {  
        var string = "";  
        var i = 0;  
        var c = c1 = c2 = 0;  
        while ( i < utftext.length ) {  
            c = utftext.charCodeAt(i);  
            if (c < 128) {  
                string += String.fromCharCode(c);  
                i++;  
            } else if((c > 191) && (c < 224)) {  
                c2 = utftext.charCodeAt(i+1);  
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));  
                i += 2;  
            } else {  
                c2 = utftext.charCodeAt(i+1);  
                c3 = utftext.charCodeAt(i+2);  
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));  
                i += 3;  
            }  
        }  
        return string;  
    }  
}
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