how to get current user credentials for office 365

var theData = {
"propertiesForUser": {
"__metadata": { "type": "SP.UserProfiles.UserProfilePropertiesForUser" },
"accountName" : "i : 0#.f|membership|mgangwar@server32.onmicrosoft.com",
"propertyNames": ["Email", "Phone"]
}
};

var requestHeaders = {
"Accept": "application/json;odata=verbose",
"X-RequestDigest": jQuery("#__REQUESTDIGEST").val()
};

jQuery.ajax({
url:_spPageContextInfo.webAbsoluteUrl + "/_api/SP.UserProfiles.PeopleManager/GetUserProfilePropertiesFor",
type:"POST",
data: JSON.stringify(theData),
contentType : "application/json;odata=verbose",
headers: requestHeaders,
success:function(data){
console.log(data);
},
error:function(jqxr,errorCode,errorThrown){
console.log(jqxr.responseText);
}
});