UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Em0CSDUHgDLIEt0hWQWAqJ2wPdy1QDK6NBIw7pQatyI=' 
WHERE 
  key_id = '8331830c497fb0c18013a5d25bf1a784d18dde8df30e8c65f2b4810fcfeffd5e' 
  AND (
    token = 'Em0CSDUHgDLIEt0hWQWAqJ2wPdy1QDK6NBIw7pQatyI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00021