Using Zephyr API, What is an 'EntityId' and where do I find it?

[Mi5trB]

Hi,

Using JIRA with Zephyr, I am trying to get the attachments from an execution (and a stepResult later on) using the following URL:

https://<server>/rest/api/1.0/attachment/search/execution?entityId=

I am not sure what the entityId is or where to find it.  I am also not sure if I am setting up my URL correctly.  I gathered the information from https://zfjcloud.docs.apiary.io/#reference/attachment/get-execution-attachment-list/get-execution-attachment-list.

Any information would be helpful. Thanks.