Write a generic handler or webservice to handle nested JSON

I have the following JSON and I want to write a generic handler or pagemethod to process this data to sql server. I m stuck here and can't figure it out. please if you could help

how can I map through it. I know that I need a loop but again can't figure it out

I m using ASP/vb.net

{"action": "edit","data": {"2383": {"RecID": 2383,"PtFilenum": "15090248","PrtFilenum": 13090701,"FullName": "saied salem","DOB": "04 Oct 1985","PrtStatus": ""
		},"3387": {"RecID": 3387,"PtFilenum": "15090248","PrtFilenum": 15120996,"FullName": "marwam mohmmad  saleem","DOB": "24 May 2017","PrtStatus": ""
		}
	}
}