UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xBFpbPIa6x/lKA3e0BTQYJHgmiWp7vtnb3Kzvki+DbQ=' 
WHERE 
  key_id = '1c812426e536b955b908785ad3a0eb4df45a00836f651d999968e298abd5a3e4' 
  AND (
    token = 'xBFpbPIa6x/lKA3e0BTQYJHgmiWp7vtnb3Kzvki+DbQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )