UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RMn6uzgTxvcYfDKUZShu8lxjzrIl5IW9XYz+6hqZ+/c=' 
WHERE 
  key_id = 'd4c784df225cc59d5380afa24e92122e76905f6ddf06a94710e6a8e84afa6970' 
  AND (
    token = 'RMn6uzgTxvcYfDKUZShu8lxjzrIl5IW9XYz+6hqZ+/c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )