"application/atom+xml", 'content' => << Example feed title urn:uuid:0fd8f6d8-43df-11e7-8511-9b59a0324eb8 urn:uuid:df329114-43df-11e7-9f23-a938604d62f8 Article title 1 Article content 1 2000-01-01T00:00:00Z 2000-01-01T00:00:00Z urn:uuid:24382fa8-43e0-11e7-bd9c-559df0ea4b9b Article title 2 Article content 2 2000-01-02T00:00:00Z 2000-01-02T00:00:00Z urn:uuid:03b9f558-43e1-11e7-87c5-ebaab4fd4cd1 Article title 3 Article content 3 2000-01-03T00:00:00Z 2000-01-03T00:00:00Z urn:uuid:3d5f5154-43e1-11e7-ba11-1dcae392a974 Article title 4 Article content 4 2000-01-04T00:00:00Z 2000-01-04T00:00:00Z urn:uuid:6d4c7964-43e1-11e7-92bd-4fed65d89793 Article title 5 Article content 5 2000-01-05T00:00:00Z 2000-01-05T00:00:00Z urn:uuid:b0b9698c-43e6-11e7-85b4-53a6b351844b Article title 6 Article content 6 2000-01-06T00:00:00Z 2000-01-06T00:00:00Z MESSAGE_BODY ];