UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RfXQNNeeRxjGl2rUIX+WGBBEOxRd4fvyHpFhsoOZRSs=' 
WHERE 
  key_id = '79f56c3466f6d81c448d73e2e714e1921e3da80bb8dcf7454e6b0e02415140ea' 
  AND (
    token = 'RfXQNNeeRxjGl2rUIX+WGBBEOxRd4fvyHpFhsoOZRSs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )