domain1.com:
  '@': your_root_domain1.com_dns_record_id_here
  _id: your_domain1.com_zone_id_here
  sub1: your_sub1.domain1.com_dns_record_id_here
  sub2: your_sub2.domain1.com_dns_record_id_here
domain2.net:
  '@': your_root_domain2.net_dns_record_id_here
  _id: your_domain2.net_zone_id_here
  sub1: sub1.domain2.net_dns_record_id_here
  sub2: sub2.domain2.net_dns_record_id_here