Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7aa222cbd5b4b7b324bc6b7065fb3065f958df85c3bb171991882da979b36349' 
  AND token = 'hZkoTg8jTMIghqMjoA3fIptmTzhI7GNgAAKgmU5T4RQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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