chromium/chrome/test/data/extensions/delayed_install/v3/manifest.json

{
  "name": "Delayed Install Test",
  "version": "3.0",
  "manifest_version": 3,
  "description": "Tests extension updates when delayed.",
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8c4fBSPZ6utYoZ8NiWF/DSaimBhihjwgOsskyleFGaurhi3TDClTVSGPxNkgCzrz0wACML7M4aNjpd05qupdbR2d294jkDuI7caxEGUucpP7GJRRHnm8Sx+y0ury28n8jbN0PnInKKWcxpIXXmNQyC19HBuO3QIeUq9Dqc+7YFQIDAQAB",
  "browser_action": {
    "default_popup": "popup.html"
  }
}