UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'flS+inH6MK/TlNrBeNcHs9ovxx69hqLaIGvBtFy0OhU=' 
WHERE 
  key_id = '18a5414f548ed945bfd7de699b553d8faff2cf23b8f3481dcb5c7c1e941a8529' 
  AND (
    token = 'flS+inH6MK/TlNrBeNcHs9ovxx69hqLaIGvBtFy0OhU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )