Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '640d7821ccac2688df420449da6e0a280a9b36d616d262843f908cc5e9a5e12b' 
  AND token = 'weWQteT6o9w/FnGZ913MpfNhXFAs+tpYJw9635JQJ3M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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