These entries are queried from radb.net using whois, you can try my project getting these.
:AS51932 route: 91.221.140.0/23 descr: route object origin: AS51932 mnt-by: MNT-RND mnt-by: ORVD-MNT created: 2011-02-10T15:10:22Z last-modified: 2021-01-19T20:33:51Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route: 91.221.140.0/24 descr: route object origin: AS51932 mnt-by: ORVD-MNT mnt-by: MNT-RND created: 2021-01-20T14:15:56Z last-modified: 2021-01-21T13:03:53Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route: 91.221.141.0/24 descr: route object origin: AS51932 mnt-by: ORVD-MNT mnt-by: MNT-RND created: 2021-01-20T14:16:30Z last-modified: 2021-01-21T13:02:37Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid