Genymotion Desktop is meant to be installed and run on real hardware. Therefore, nested virtualization is not supported.
Also, Genymotion Desktop will not run in an instance from a Cloud service, such as AWS, GCP, Alibaba or Microsoft Azure. See Can Genymotion Desktop run in a Cloud service (AWS, Google Cloud, MS Azure, Alibaba, etc.)?
For more details about Genymotion Desktop supported systems, please refer to What are Genymotion Desktop requirements?