UPDATE 
  cscart_june_setuplock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8Q8RiuwyTEnX1ejoWrKisNah0+ZM4ei/DfOwF46S2xs=' 
WHERE 
  key_id = '50a501daeb9eef23d18c547f22a748efdc79e6a71efa73942842808477c3a952' 
  AND (
    token = '8Q8RiuwyTEnX1ejoWrKisNah0+ZM4ei/DfOwF46S2xs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00040