{
       "took": 4,
       "timed_out": false,
       "_shards": {
          "total": 5,
          "successful": 5,
          "failed": 0
       },
       "hits": {
          "total": 6,
          "max_score": 0,
          "hits": []
       },
       "aggregations": {
          "myAgg": {
             "doc_count": 2,
             "sub_nested": {
                "doc_count": 2,
                "sub": {
                   "doc_count_error_upper_bound": 0,
                   "sum_other_doc_count": 0,
                   "buckets": [
                      {
                         "key": "c1",
                         "doc_count": 2,
                         "sub2_nested": {
                            "doc_count": 0,
                            "sub2": {
                               "doc_count_error_upper_bound": 0,
                               "sum_other_doc_count": 0,
                               "buckets": []
                            }
                         }
                      },
                      {
                         "key": "c3",
                         "doc_count": 2,
                         "sub2_nested": {
                            "doc_count": 0,
                            "sub2": {
                               "doc_count_error_upper_bound": 0,
                               "sum_other_doc_count": 0,
                               "buckets": []
                            }
                         }
                      }
                   ]
                }
             }
          }
       }
    }