Visualize doc_count as a single_stat

Below is my data in my Query inspector. I am able to query my elasticsearch datasource. I am able to see the in the response as below. I want to see the doc_count, but I see the key(say in-progress) in my single-stat panel. Can someone please assist me here?

{
“request”: {
“method”: “POST”,
“url”: “api/datasources/proxy/45/_msearch”,
“data”: “{“search_type”:“count”,“ignore_unavailable”:true,“index”:“myindex”}\n{“size”:0,“query”:{“bool”:{“filter”:[{“range”:{“createts”:{“gte”:“1505239921345”,“lte”:“1520878321345”,“format”:“epoch_millis”}}},{“query_string”:{“analyze_wildcard”:true,“query”:”*"}}]}},“aggs”:{“3”:{“terms”:{“field”:"_type",“size”:10,“order”:{"_term":“desc”},“min_doc_count”:1},“aggs”:{}}}}\n"
},
“response”: {
“responses”: [
{
“took”: 1,
“timed_out”: false,
“_shards”: {
“total”: 5,
“successful”: 5,
“failed”: 0
},
“hits”: {
“total”: 2602,
“max_score”: 0,
“hits”: []
},
“aggregations”: {
“3”: {
“doc_count_error_upper_bound”: 0,
“sum_other_doc_count”: 0,
“buckets”: [
{
“key”: “in-progress”,
“doc_count”: 149
},
{
“key”: “success”,
“doc_count”: 2453
}
]
}
}
}
]
}
}