Cannot access data with special characters

When using docx templates. I have a json like that:
```
{
   "myObj":  {
       "Key with spaces":  "random value"
  }
}
```

I cannot access my variable within the template.
I've tested:
`+++ myOjb["Key with spaces"] +++`
`+++ myObj.Key with spaces +++`

Is there any way to directly acess this on the template, without removing the spaces?