SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a3d59cb324d482eb47017c8f20156dbc07b7697cf3378b2034351f4fcb65c64' 
  AND token = 'A9EWLA+A+/2JFEs14kZ9iJrNiav5vEUzSjUz1YxL+Bg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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