Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8faa774634eaabe48435c30f2321d01c433bc1ac7a95995813a49801b0028d6c' 
  AND token = 'ICwlJHTO0lFk4c2ICowUIZrTsB6omn4hOdFdqv0R6Zs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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