curl --request POST \
  --url https://studio.edgeimpulse.com/v1/api/organizations/{organizationId}/campaigns/{campaignId}/diff \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "queries": [
    {
      "dataset": "<string>",
      "query": "<string>",
      "graphValueId": 123
    }
  ]
}'

{
  "success": true,
  "error": "<string>",
  "date": "2023-11-07T05:31:56Z",
  "queries": [
    {
      "title": "<string>",
      "dataset": "<string>",
      "query": "<string>",
      "newItems": [
        "<string>"
      ],
      "deletedItems": [
        "<string>"
      ]
    }
  ]
}