Step 1: log in to JIRA with admin credentials.
Step 2: go to JIRA SETTINGS -> Products -> INTEGRATIONS -> Application Links
Or just copy this address /plugins/servlet/applinks/listApplicationLinks and add it to your Atlassian account URL. You will immediately get to the right page.
Step 3: enter URL https://standuply.com and press the "Create new link" button
Step 4:
enter standuply in each field
select Application Type: Generic Application (default)
tick Create incoming link
Step 5: Enter Consumer Key and Consumer.
Consumer Key: standuply
Consumer Name: Standuply
Public Key: MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNdLyDzUU7Vi78IXz5RocRVIXMfbqWWEiSA8eTEnKnJ/zxiWw9jg7XIxmCMemcCh+Ne2ap3tZsEOnHQ29kMAomWvgQfpjOC6i/wXpjRjGAjW6nbcU4bXGBUZqnjdkS7o71Epf0hrm51QHbiLk0asPyEbpzBQ2xhfbBMPuJZzyIxwIDAQAB