UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ae5dFzxoFe0RKbI1FwttuO6ec2C8XLMwH3zXbgGBKHY=' 
WHERE 
  key_id = '81843c8ae9f5a87b0b063e903983a7d32361b6fbb7957ee3a6e1a73e07757c91' 
  AND (
    token = 'ae5dFzxoFe0RKbI1FwttuO6ec2C8XLMwH3zXbgGBKHY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )