//Below subscription will capture when the begin receive date changes for a specfic steam ship line's vessel in the inbound state.
  "type": "subscribe",						// Required: Don't Change
  "channel": "/nsp",						// Required: Don't Change
  "transport": "ws", 						// Required: Don't Change
  "groupId": "BeginReceiveUpdate",			// Required: GroupId is whatever you want it to be. No duplicates, so name accordingly.
  "filters": [								// Required: Your main filter array. All key:value pairs will go in here.
    {
      "eventName": "VesselVisit",			//Optional: Used to filter when certain fields on the eventName record changes. Read page 13 on Developer guide for more details
      "operation" : "update",				// Optional: Operation mode of the event. create/update/delete
      "changeFields": {
          "include": ["beginReceive"],		//Optional: list of events included
		  "exclude": ["*"]					//Optional: list of events excluded
      },
      "filter": {							// Optional: filter payload tag
        "predicate": ["visitPhase=20INBOUND", "lineId=MAE"],
        "fields": [							// Optional: Your filter attributes. These come from the payload.
          "visitId",
          "vesId",
          "visitPhase",
          "lineId",
          "beginReceive"

        ]
      }
    }
  ]
}