Signal killer? nostr:naddr1qqckjmn5wfhkgatrd9hxwttdv9ex6mm5946xsefdve6hgatjv5kk7e3dwdjkxatjv5kk6etnwdskw6twvupzq9eemymaerqvwdc25f6ctyuvzx0zt3qld3zp5hf5cmfc2qlrzdh0qvzqqqr4gu6ud692