curl --request PATCH \
  --url https://app.getcensus.com/api/v1/destinations/{destination_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "service_connection": {
    "name": "Google Sheets",
    "credentials": {},
    "type": "<string>"
  }
}'

{
  "status": "updated",
  "data": {
    "id": 12,
    "name": "Google Sheets",
    "created_at": "2023-07-22T23:42:47.239Z",
    "last_test_results": {
      "steps": [
        {
          "step": "Verify connectivity",
          "error": {
            "message": "<string>"
          },
          "status": "success"
        }
      ]
    },
    "last_test_succeeded": true,
    "last_tested_at": "2023-11-07T05:31:56Z",
    "connection_details": {
      "account_id": "7515011393,",
      "account_name": "Manager Account Test"
    },
    "objects": [
      {
        "label": "User",
        "full_name": "user",
        "supported_operations": [
          "insert",
          "update",
          "upsert"
        ],
        "allow_custom_fields": true,
        "allow_case_sensitive_fields": true,
        "supports_field_ordering": false,
        "can_be_sync_destination": true,
        "fields": [
          {
            "label": "External User ID",
            "full_name": "external_id",
            "createable": true,
            "updateable": true,
            "operations": [
              "overwrite"
            ],
            "array": true,
            "preserve_values_supported": true,
            "required_for_mapping": true,
            "can_be_upsert_key": true,
            "can_be_update_key": true,
            "can_be_insert_key": true,
            "can_be_reference_key": true,
            "lookup_object": "company",
            "type": "string"
          }
        ]
      }
    ]
  }
}