[{
  "name": "example.com",
  "records": [
    {
      "name": "example.com",
      "type": "SOA",
      "ttl": 3600,
      "data": {
        "mname": "ns1.example.com",
        "rname": "admin.example.com",
        "serial": 2013022001,
        "refresh": 86400,
        "retry": 7200,
        "expire": 604800,
        "minimum": 300
      }
    },
    {
      "name": "example.com",
      "type": "A",
      "ttl": 3600,
      "data": {
        "ip": "1.2.3.4"
      }
    },
    {
      "name": "example.com",
      "type": "MX",
      "ttl": 3600,
      "data": {
        "preference": 10,
        "exchange": "mail.example.com"
      }
    }
  ]
}]

[
    {
        "name": "example.com",
        "records": [
            {
                "name": "example.com",
                "type": "SOA",
                "ttl": 3600,
                "data": {
                    "mname": "ns1.example.com",
                    "rname": "admin.example.com",
                    "serial": 2013022001,
                    "refresh": 86400,
                    "retry": 7200,
                    "expire": 604800,
                    "minimum": 300
                }
            },
            {
                "name": "example.com",
                "type": "A",
                "ttl": 3600,
                "data": {
                    "ip": "1.2.3.4"
                }
            },
            {
                "name": "www.example.com",
                "type": "CNAME",
                "ttl": 120,
                "data": {
                    "dname": "example.com"
                }
            },
            {
                "name": "example.com",
                "type": "MX",
                "ttl": 3600,
                "data": {
                    "preference": 10,
                    "exchange": "mail.example.com"
                }
            },
            {
                "name": "example.com",
                "type": "NS",
                "ttl": 3600,
                "data": {
                    "dname": "ns1.example.com"
                }
            },
            {
                "name": "example.com",
                "type": "NS",
                "ttl": 3600,
                "data": {
                    "dname": "ns2.example.com"
                }
            }
        ]
    }
]

Reformat using jsonlint and add additional records.
Reformat using jsonlint and add additional records.