curl --request POST \
  --url https://api.neoagent.io/public-api/backfills/verify \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "filter_spec": {}
}
'

{
  "data": {
    "matching_entities": 123,
    "message": "<string>",
    "success": true
  },
  "meta": {
    "request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "timings_ms": {},
    "pagination": {
      "has_more": true,
      "next_cursor": "<string>"
    },
    "warnings": [
      "<string>"
    ]
  }
}