Grab Form Data as an Object

My goal is to contruct an object with data of my form.

After doing some googling, people suggested me to use serialize()

Now, I got this from my form data

_method=PUT&_token=rs8iLxwoJHSCj3Cc47jaP5gp8pO5lhGghF1WeDJQ&max_down=256&max_up=256&cpe_mac=000D6766F2F6&device_mac=503275AE7A69

Is there a way to convert that long string into an object ?

Is there a any other way to achieve this ?

Any direction on this will mean a lot to me !

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I've tried

$( "form#editRateLimitForm" ).on( "submit", function( event ) {
      event.preventDefault();
      var serialize = $( this ).serialize() ; // Nothing printing out
      console.log(serialize); // _method=PUT&_token=rs8iLxwoJHSCj3Cc47jaP5gp8pO5lhGghF1WeDJQ&max_down=256&max_up=256&cpe_mac=000D6766F2F6&device_mac=503275AE7A69

    });

via Chebli Mohamed