UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RqKg34UZvtbZuzriGH1cjMHzW7KaTXgmTLV30xa9vaI=' 
WHERE 
  key_id = '50dbd9f1498a3b0a63a24e5c4a81731d5ce01024d58dfe14a195cd57a6e1dc87' 
  AND (
    token = 'RqKg34UZvtbZuzriGH1cjMHzW7KaTXgmTLV30xa9vaI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )