UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a8/pLqrO8aMnHhGZ0mlZ2kidAMLNRqyU8FPkFcWqpzA=' 
WHERE 
  key_id = '51669562ad6fd02e4f2f33ce5fe2c63316048ccf32852f3084f3c4733c70dd90' 
  AND (
    token = 'a8/pLqrO8aMnHhGZ0mlZ2kidAMLNRqyU8FPkFcWqpzA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )