I want to access a nested Json file, didn't figure out how to do it:

```
  var createPromise = new Promise(function (resolve, reject) {
        ddpclient.call('create_emailConnection',[ddpclient.collections.email], function (err, result) {
          console.log([ddpclient.collections.email])
          resolve();
          if (err) {
            logger.error(0, '❌ error user_created')
          } else {
            logger.debug(5, 'users marked as created')
          }
        })
      })

```

This return 

email.json

```
{ HEDGz2aafs2UdSvT3S: 
     { _id: 'HEDGz2aafs2UdSvT3S',
       batch: '2017-user-created-by-websocket',
       creationIP: 'None',
       creationDate: 2018-06-14T13:23:58.786Z,
       state: [Object],
    },
    M101KSi360g7cER8D5: 
     { _id: 'M101KSi360g7cER8D5',
       batch: '2017-box-created-by-websocket',
       creationIP: 'None',
       creationDate: 2018-06-14T13:24:31.145Z,
       state: [Object],
      } } 

```

So I want to get the \_id on my json file