Problem with Spotify Keys

Problem:

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://repository.spotify.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EFDC8610341D9410
W: Failed to fetch http://repository.spotify.com/dists/stable/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EFDC8610341D9410
W: Some index files failed to download. They have been ignored, or old ones used instead.

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This happen when somehow we'd lost the keys.

To solve i have executed the first step listed here https://www.spotify.com/de/download/linux/

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0DF731E45CE24F27EEEB1450EFDC8610341D9410

ref:

https://superuser.com/questions/932781/failed-to-fetch-spotify-repository-while-updating-ubuntu