Unable to create Azure Function keys, using terraform azapi

Question

I am trying to create the function keys using terraform

resource "azapi_resource" "symbolicname" {
  type = "Microsoft.Web/sites/functions/keys@2022-09-01"
  name = "Random"
  parent_id = "/subscriptions/xxxxxxxxxxxxxxxxxxxxx/resourceGroups/xxxxxxx/providers/Microsoft.Web/sites/fa-test-fucntions/functions/testcreatkey"
  body = jsonencode({
    value = "hhundredslkkjjsiiskkk"
  })
} 

but getting below error,

--------------------------------------------------------------------------------
│ RESPONSE 400: 400 Bad Request
│ ERROR CODE UNAVAILABLE
│ --------------------------------------------------------------------------------
│ {
│   "Code": "BadRequest",
│   "Message": "Properties object is not present in the request body.",
│   "Target": null,
│   "Details": [
│     {
│       "Message": "Properties object is not present in the request body."
│     },
│     {
│       "Code": "BadRequest"
│     },
│     {
│       "ErrorEntity": {
│         "ExtendedCode": "51006",
│         "MessageTemplate": "{0} object is not present in the request body.",
│         "Parameters": [
│           "Properties"
│         ],
│         "Code": "BadRequest",
│         "Message": "Properties object is not present in the request body."
│       }
│     }
│   ],
│   "Innererror": null
│ }

Basically I wanted to save fucntion keys using terraform into KV secret, So I thought of trying to create the keys and then storing the value in KV

Any help, appreciated