Getting to a property in a JSON array

I have the following array:

{
   "customizedData":[
      {
         "key":"SubscriptionId",
         "value":"xxxxxxxxxxxxxxxx"
      },
      {
         "key":"OfferId",
         "value":"xxxxxxxxxxxxxx"
      },
      {
         "key":"SubscriptionName",
         "value":"DYNAMICS 365 BUSINESS CENTRAL TEAM MEMBER"
      },
      {
         "key":"Quantity",
         "value":"6"
      },
      {
         "key":"Status",
         "value":"Suspended"
      },
      {
         "key":"PartnerOnRecord",
         "value":"None"
      }
   ]
}

How do I access key the elements:

"key": "SubscriptionName", "value": "DYNAMICS 365 BUSINESS CENTRAL TEAM MEMBER"

At the moment I use: (string)t["customizedData"][2]["value"]

Are there any better ways?