Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1787415c5ffb9bb4a31be7589c524bbc1c370ec80a8b93fb3960d07474fc8022' 
  AND token = 'AYhFL6GtMtUH32vw5zgE84tWdaW57Db8L8bYLUTJXtw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}