curl --request POST \
  --url https://api.interchange.io/api/v2/buyer/campaigns/{campaignId}/creatives/validate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "manifest": {
    "assets": {},
    "rights": [
      {}
    ],
    "provenance": {},
    "ext": {}
  }
}
'

{
  "results": [
    {
      "target": {
        "id": "<string>"
      },
      "violations": [
        {
          "rule": "<string>",
          "field": "<string>",
          "expected": "<unknown>",
          "predicted": "<unknown>",
          "retry_with": {}
        }
      ]
    }
  ]
}