http://localhost:8080/cmx/cs/localhost-orcl-DS_UI1/ReadPerson.json
{ 
 parameters:
 { 
   coFilter: {
   object: {
     name:"Person",
     key: {
       rowid: 1242
     },
     order: "lastName",
     object:[
       {name:"Names", order:"-name"},
       {name:"Phone", order:"phoneNum, -phoneCountryCd",
       object:[{name:"PhonePermissions", order:"-column1"}]
       }
    ]}
  }
 }
}