curl --request POST \
  --url http://localhost:3001/api/v1/treasury/users/{id}/kyc/sandbox-reject \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "reasons": [
    "<string>"
  ]
}
'

{
  "success": true,
  "data": {
    "id": "<string>",
    "partnerEndUserId": "<string>",
    "updatedAt": "<string>",
    "level": {},
    "rejectionReasons": [
      "<string>"
    ],
    "kycLinkUrl": {}
  }
}