UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eNh8DgtJ6qrm6JG13vTjrC1NwhBAKJNCKu6RtPlMAhI=' 
WHERE 
  key_id = 'cbd8c86aa2e927dd3e083758be02e52741adacc8f06c02807581a9b180114533' 
  AND (
    token = 'eNh8DgtJ6qrm6JG13vTjrC1NwhBAKJNCKu6RtPlMAhI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )