Hello,
The maximum execution timeout for a scenario is 40 minutes. Additionally, there is a grace time of 5 minutes, which allows for a total maximum execution time of 45 minutes.
It is not possible to include such delays in same scenario, the workaround would be to split scenario, the first scenario should end with the HTTP - Make a request module to send the request to the webhook that would start the second scenario. The second scenario needs to start with the webhook module and its URL should be added into the URL field of the HTTP module.
Hope this points in the right direction, Thanks.