UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'brz3pHUNv7nYMBvfG34WjXDS2WPd91CHJw7NH5yj0lU=' 
WHERE 
  key_id = '6abcbe1568a46a3423766222d367a83e92466e845d979bbc1b05ace866f6e66a' 
  AND (
    token = 'brz3pHUNv7nYMBvfG34WjXDS2WPd91CHJw7NH5yj0lU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )