Access json from client side (javascript)

Given a response like the below one, how would one access this “Value”: “LK451XX45FG”? That’s on the callback.

{
“Body”:
{
“stkCallback”:
{
“MerchantRequestID”: “21605-295434-4”,
“CheckoutRequestID”: “ws_CO_04112017184930742”,
“ResultCode”: 0,
“ResultDesc”: “The service request is processed successfully.”,
“CallbackMetadata”:
{
“Item”:
[
{
“Name”: “Amount”,
“Value”: 1
},
{
“Name”: “MpesaReceiptNumber”,
"Value": "LK451XX45FG"
},
{
“Name”: “Balance”
},
{
“Name”: “TransactionDate”,
“Value”: 20201104184944
},
{
“Name”: “PhoneNumber”,
“Value”: 25470000000
}
]
}
}
}
}