vessel_screening is always null; on zone/port subscriptions fleet_id and imo are always null.{
"notification_callback_url": "http://example.com",
"email_settings": {
"email_enabled": true,
"scheduler": {
"schedule_type": 1,
"at_time": "12:00"
},
"additional_recipients": [
"user@example.com"
]
},
"filters": {
"property1": "string",
"property2": "string"
},
"vessel_screening": {
"active": false,
"severity_filter": [
"OK"
]
},
"fleet_id": "string",
"imo": "9074729"
}