circle_details / polygon_details is populated, matching custom_type.{
"custom_type": "CIRCULAR",
"name": "Zone A",
"description": "A polygon zone",
"created_by": "string",
"created_at": "string",
"last_modified_by": "string",
"last_modified_at": "string",
"circle_details": {
"latitude": 25.363052,
"longitude": 55.375141,
"radius": 1000
},
"polygon_details": {
"format": "WKT",
"polygon": "string"
}
}