Return latency_info.keyword in a Watcher for Kibana elasticsearch

Hello!
I am really a little newbie in Elasticsearch. I need help returning the latency_info.keyword field. I am setting up a wathcer for an API and I need a webhook in teams to show me that field. I have this created:

"aggs": {
                    "group_by_api": {
                      "terms": {
                        "field": "api_name.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_app": {
                      "terms": {
                        "field": "app_name.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_catalog": {
                      "terms": {
                        "field": "catalog_name.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_space": {
                      "terms": {
                        "field": "space_name.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_version": {
                      "terms": {
                        "field": "api_version.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_platform": {
                      "terms": {
                        "field": "platform.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_resource_id": {
                      "terms": {
                        "field": "resource_id.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_timestamp": {
                      "terms": {
                        "field": "@timestamp",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_status_code": {
                      "terms": {
                        "field": "status_code.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },
                    "group_by_latency": {
                      "terms": {
                        "field": "latency_info.keyword",
                        "size": 100,
                        "order": {
                          "_count": "desc"
                        }
                      }
                    },

And then I built a webhook to show all info but the field Latency is quite difficult to show:

"webhook_1": {
      "webhook": {
        "scheme": "https",
        "host": "santandernet.webhook.office.com",
        "port": 443,
        "method": "post",
        "path": "webhookb2/09f76526-2b2d-49b6-92c5-26fd22d63a9e@35595a02-4d6d-44ac-99e1-f9ab4cd872db/IncomingWebhook/288e4ba865e244d29ca77fa5651ba2d1/a37457c5-e6ed-4801-8155-b430ca5e3c56",
        "params": {},
        "headers": {},
        "body": """{
 "@type": "MessageCard",
 "@context": "http://schema.org/extensions",
 "themeColor": "0076D7",
 "summary": "SN1Test_Customer-screening_500-InternalServerError_Watchers Kibana_Desarrollo: errors with status code 500 Internal Server Error in the last 10 minute",
 "sections": [{
 "activityTitle": "SN1Test_Customer-screening_500-InternalServerError_Watchers Kibana_Desarrollo: {{ctx.payload.statuscode.hits.total}} errors {{ctx.payload.statuscode.aggregations.group_by_status_code.buckets.0.key}} in the last 10 minutes",
 "activityImage": "https://assets.stickpng.com/images/5a27cdfd52b1cc0d022e6d5c.png",
 "facts": [ {
 "name": "Reported date",
 "value": "**{{ctx.trigger.scheduled_time}}**"
 },{
 "name": "API Name",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_api.buckets.0.key}}"
 },{
 "name": "API Version",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_version.buckets.0.key}}"
 },{
 "name": "Application",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_app.buckets.0.key}}"
 },{
 "name": "Errors",
 "value": "{{ctx.payload.statuscode.hits.total}}"
 },{
 "name": "Status code",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_status_code.buckets.0.key}}"
 },{
 "name": "Platform",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_platform.buckets.0.key}}"
 },{
 "name": "Gateway IP",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_gateway_ip.buckets.0.key}}"
 },{
 "name": "Catalog",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_catalog.buckets.0.key}}"
 },{
 "name": "Latency",
 "value": "{{ctx.payload.statuscode.aggregations.group_by_latency.buckets.key}}"
 },{

The problem with this field I guess is that is a nested field like so:

 "latency_info": [
      {
        "task": "Start",
        "started": 0
      },
      {
        "task": "PlanRateLimits",
        "started": 10
      },
      {
        "task": "apim.security",
        "started": 11
      },
      {
        "task": "get-properties",
        "started": 21
      },
      {
        "task": "jwt-generate-scib",
        "started": 23
      },
      {
        "task": "proxy",
        "started": 28
      },
      {
        "task": "if",
        "started": 19848
      },
      {
        "task": "BackendError",
        "started": 19850
      },
      {
        "task": "catch",
        "started": 19852
      },
      {
        "task": "catch",
        "started": 19853
      },
      {
        "task": "catch",
        "started": 19853
      },
      {
        "task": "catch",
        "started": 19854
      },
      {
        "task": "map",
        "started": 19856
      }
    ],

I need to return all tasks.

Please a little help.