UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PSLmS9jDAAjjB8tgizx3cM3Wh0hOFPhjhGGM4UCqhZs=' 
WHERE 
  key_id = '678f3b4672883deda6be0f9c492563f71e89b036711d237fa0fc38cee498cde8' 
  AND (
    token = 'PSLmS9jDAAjjB8tgizx3cM3Wh0hOFPhjhGGM4UCqhZs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )