UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Skv9BJw9Swo8zWQq8DnoC9JEtJgZgHXGfm5zYf8hWK0=' 
WHERE 
  key_id = '79831b6bfc5315f27e3d8e75a349ae6403861f6b77227fb594358e718f00c0c1' 
  AND (
    token = 'Skv9BJw9Swo8zWQq8DnoC9JEtJgZgHXGfm5zYf8hWK0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )