Solution: Run a DB migration to update the paypal_requests table. This can be run on the current production DB without issue.
No concerns
The purpose of this PR is to record the DB change, the real change to the server will come from running the new migration, so there are no blockers to merge.
friend
it should have been(friend, requestor)
to allow for multiple requests for a single friend, but not from the same requestor. Jira: https://blockmason.atlassian.net/secure/RapidBoard.jspa?rapidView=9&projectKey=ENG&modal=detail&selectedIssue=ENG-147