curl --request POST \
  --url https://example.com/api/validator/v0/scan-proxy/ans-rules \
  --header 'Content-Type: application/json' \
  --data '
{
  "cached_ans_rules_contract_id": "<string>",
  "cached_ans_rules_domain_id": "<string>"
}
'

{
  "ans_rules_update": {
    "contract": {
      "template_id": "<string>",
      "contract_id": "<string>",
      "payload": {},
      "created_event_blob": "<string>",
      "created_at": "<string>"
    },
    "domain_id": "<string>"
  }
}