UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u4/huvxAYyL4mmObmKbIS9wyUoHP2r3n8hu1ecVNbq8=' 
WHERE 
  key_id = '20915661b34aceb8fd86bed647d690d9253c75eb723d5c2682a0b42b43005526' 
  AND (
    token = 'u4/huvxAYyL4mmObmKbIS9wyUoHP2r3n8hu1ecVNbq8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )