Execute the pack and get the result of by using st2 apis

I try to execute st2 api using url to execute the pack and get the result.
The url is ,
https://172.16.0.110/stream/v1/executions/5e5765eca5d39d012205d1a2/output?st2-api-key=ZTFkNmVjZGYyMDk3MDNiYTcxZjcyMmVmZTFhMjAzZjJmZTE5OWJiN2YyMGFjN2QwNjk5MjE3YzllNTUwZWY0MQ&output_type=stdout

But there is no result when i try to execute it.
Please help me

@sheetal what does happen