UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KVGvMrcJpLndoC+71pUSjvV5i68zaH1PSO6fwTIgedI=' 
WHERE 
  key_id = '795e8e4dcfc96d463113e96aa5aad2e133cdca32fc04d895d7e98535c815f387' 
  AND (
    token = 'KVGvMrcJpLndoC+71pUSjvV5i68zaH1PSO6fwTIgedI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )