Here is the description of response attributes, which returns in the form of JSON.
This field gives information of how many total unique users are resisted in for event.
This field provides an array of information from users such as their user first name, last name and photo.
Here are the possible error messages, which get returned if any condition gets failed or required data is missing for processing.
The request could not be understood by the server due to malformed syntax.
You are not authorized to view the resource.
Accessing the resource you were trying to reach is forbidden.
The resource you were trying to reach is not found.
No event could be found.
Can't create URL.