UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'QaKAzGUV/wRvUU/UT0OjTX4GOQhlUdYcHNq8dJyExJ4=' 
WHERE 
  key_id = '766981eeb0617512a6542bea201af274a4164551772892b47b1aad842d5d1d66' 
  AND (
    token = 'QaKAzGUV/wRvUU/UT0OjTX4GOQhlUdYcHNq8dJyExJ4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )