UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+RubAc+W9hjq6iTY+qbyfWjK6UExjyz2SlnN8MUXcCE=' 
WHERE 
  key_id = '7576a1ccd48383b025c6023eecde2e15e67b7c60b756106b211c86270557c2b4' 
  AND (
    token = '+RubAc+W9hjq6iTY+qbyfWjK6UExjyz2SlnN8MUXcCE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )