UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wP1BlzZ9P7ZNPAcNFhvxtlhdXjO/MDDkI9ml8QROeBQ=' 
WHERE 
  key_id = '2740885ce2f08e27a689d40f00b5d93b443871afe10771dbd2d03be46595ea7a' 
  AND (
    token = 'wP1BlzZ9P7ZNPAcNFhvxtlhdXjO/MDDkI9ml8QROeBQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )