UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K21mmhkPY7vRSnrZyR+PXvq0IBg0w4xaVHBH3Z55zno=' 
WHERE 
  key_id = '68d9bb9cccba7db1a8aaa4b50bcf3df7f474025815f16a65684c5644cfc91f42' 
  AND (
    token = 'K21mmhkPY7vRSnrZyR+PXvq0IBg0w4xaVHBH3Z55zno=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )