Use Object.keys() to get keys array and use forEach() to iterate over them.
var data = {
"VERSION": "2006-10-27.a",
"JOBNAME": "EXEC_",
"JOBHOST": "Test",
"LSFQUEUE": "45",
"LSFLIMIT": "2006-10-27",
"NEWUSER": "3",
"NEWGROUP": "2",
"NEWMODUS": "640"
};
Object.keys(data).forEach(function(key) {
console.log('Key : ' + key + ', Value : ' + data[key])
})