UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '81wjwSR1i83Us27UKpHw94nQYny7nIFCc1VXkvn8RWk=' 
WHERE 
  key_id = '1849fc25f8db3009ba0b4cf4e892584e6eed6b294c9b87bf1d40ab968637f918' 
  AND (
    token = '81wjwSR1i83Us27UKpHw94nQYny7nIFCc1VXkvn8RWk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )