How to verify ownership of Google Cloud Endpoints service URL?
I already set up Google Cloud Endpoints project and can invoke http/https requests. Endpoints gives me MY_API.endpoints.MY_PROJECT.cloud.goog domain name that I can use. I'm using gRPC Cloud Endpoints with HTTP/JSON to gRPC transcoding feature. It is deployed on Google Kubernetes Engine (deployment yaml script attached at the end). When I'm trying to create push subscription with that URL I getting next error: "The supplied HTTP URL is not registered in the subscription's parent project (url="https://MY_API.endpoints.MY_PROJECT.cloud.goog/v1/path", project_id="PROJECT_ID"). My gcloud call: