2026-04-02T00:04:13Z https://njump.me test_repository_announcement_event_metadata https://njump.me/npub1yffezu2kckd6qfpyr4kgd9q5mhqngpj2aw7h59x7x4069yx9a28sd7ty9z https://example.com/test_repo_announcement_picture.jpg https://example.com/test_repo_announcement_picture.jpg