UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rQRh+R5PNq/Dfw/Ae2gpmeEtB//QpzSbU1TtAFMrMls=' 
WHERE 
  key_id = '461c12993ef3728d8b352ec54e3ea28fbdf93b2a2a23ef8d665aeeaac77e1df4' 
  AND (
    token = 'rQRh+R5PNq/Dfw/Ae2gpmeEtB//QpzSbU1TtAFMrMls=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )