items.json

{
    "SessionData": [
        {
            "PutRequest": {
                "Item": {
                    "UserID": {"N": "5346747"},
       				"CreationTime": {"N": "1544016418"},
    				"ExpirationTime": {"N": "1544140800"},
   					"SessionId": {"N": "6734678235789"}
                }
            }
        },
        {
            "PutRequest": {
                "Item": {
                    "UserID": {"N": "6478533"},
       				"CreationTime": {"N": "1544013196"},
    				"ExpirationTime": {"N": "1544140800"},
   					"SessionId": {"N": "6732672579220"}
                }
            }
        },
        {
            "PutRequest": {
                "Item": {
                    "UserID": {"N": "7579645"},
       				"CreationTime": {"N": "1544030827"},
    				"ExpirationTime": {"N": "1544140800"},
   					"SessionId": {"N": "7657687845893"}
                }
            }
        }
    ]
}