UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'egUDiTTxGWFA60KBWFEjKvTXs5TstoEfY15vH3OVDLU=' 
WHERE 
  key_id = '51fed3e18f8099d6a3a665457b971347a191a933642bc7207f4627503efa7aaf' 
  AND (
    token = 'egUDiTTxGWFA60KBWFEjKvTXs5TstoEfY15vH3OVDLU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )