Err:19 https://deskcap.blob.core.windows.net/deployment/Linux/deb/Release bionic InRelease                                                                                                                        
  The following signatures were invalid: EXPKEYSIG E1A62E2170B0FA98 Ruslan Askarov <askarru@gmail.com>
Fetched 1,598 B in 7s (215 B/s)                                                                                                                                                                                   
Reading package lists... Done
Building dependency tree       
Reading state information... Done
130 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://deskcap.blob.core.windows.net/deployment/Linux/deb/Release bionic InRelease: The following signatures were invalid: EXPKEYSIG E1A62E2170B0FA98 Ruslan Askarov <askarru@gmail.com>
W: Failed to fetch https://deskcap.blob.core.windows.net/deployment/Linux/deb/Release/dists/bionic/InRelease  The following signatures were invalid: EXPKEYSIG E1A62E2170B0FA98 Ruslan Askarov <askarru@gmail.com>
W: Some index files failed to download. They have been ignored, or old ones used instead.

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错误看起来像这样。这是什么节目？有没有办法把这个无效的签名转换成有效的签名。