ajax call returns wrong timestamp

Hey everyone, I'm trying to create filter by date for leads table. I have date picker from which I get date range and an ajax call :

 $('#filters-form-submit').on('click', function () {
            const created_at = {};
            let range = $('#date-range').val();
            if (range) {
                range = range.split('-');
                created_at.min = range[0].replace(/\//g, '-').trim() + ' 00:00:00';
                created_at.max = range[1].replace(/\//g, '-').trim() + ' 23:59:59';
            }

            $.ajax({
            method: "POST",
            url: "{{route('filterLeads')}}",         
            dataType: "json", 
            data: {
                    Filters: created_at
                }
            })

which addresses to LeadsController:

public function filterLeads(Request $request) {
        
        $leads = Lead::select('id', 
        DB::raw('DATE_FORMAT(created_at, "%Y-%m-%d %H:%i:%s") as created_at'), 
        'phone_number')
        ->whereBetween('created_at', [$request->Filters['min'], $request->Filters['max']])
        ->get();
        
       
        return response()->json($leads);
    }

The problem is that this json response returns something like this :

2022-02-01T15:45:33.000000Z 

I've read that it's some kind of serialization but couldn't find the solution. Any kind of advice will be appreciated.