Web API - Updating Sets

If no records are specified in the set then nothing will be updated. To update a record use "action" : "update". To remove a record use "action" : "remove". To add a record use "action" : "add". Different actions can be used within the same set. For example:

"set": [
	   		{
            	"action": "update",
            	...........
        	},
			{
            	"action": "remove",
            	...........
			},
			{
            	"action": "add",
            	...........
			}
		]