UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'PEs4G7qoo56BlS2jlG/nX69Q1uGfGiwYi7TqhnfN7HI=' 
WHERE 
  key_id = '54162a8226f4a21036e104a2c6f3838e2917371cca02d63155e047457f30d223' 
  AND (
    token = 'PEs4G7qoo56BlS2jlG/nX69Q1uGfGiwYi7TqhnfN7HI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )