UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'A1KH9UjNxrhuoq3r8OAYRhfQURCl4UryH2XpwpCqmqg=' 
WHERE 
  key_id = '51d3261cffd9030730d998b064cb73b494cd2d87715646238c9167c71c2816cb' 
  AND (
    token = 'A1KH9UjNxrhuoq3r8OAYRhfQURCl4UryH2XpwpCqmqg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )