UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a8mS5twgPU95KCRhJBcWPPXvdV2O0usJHrLOGgYxP6w=' 
WHERE 
  key_id = '27a6aeb3318bac2a5e4cb7599401cad2e7edb8caaf20ff9996e0286b7640e1c3' 
  AND (
    token = 'a8mS5twgPU95KCRhJBcWPPXvdV2O0usJHrLOGgYxP6w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )