UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6nrPPJmP3FQzbrd59tBihaMVfoKKqIVwpgTYgbreaho=' 
WHERE 
  key_id = '50af0f5f6f80c64f316a70fd8ff02738a0dbef73d3e195103d22e589e02c6888' 
  AND (
    token = '6nrPPJmP3FQzbrd59tBihaMVfoKKqIVwpgTYgbreaho=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )