UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DlJnzlsnfyQCEL37o/A8NYYyaBrkZKcYIqBWh/qCITg=' 
WHERE 
  key_id = '51357429ad1d2ee8cf8ce7aafcd3d288b0d87f4ad908de888262bbb475d3145c' 
  AND (
    token = 'DlJnzlsnfyQCEL37o/A8NYYyaBrkZKcYIqBWh/qCITg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )