UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MlD6RFrscujKXxUE3mpeTpAXfzPctz8no3BxhlPXrHo=' 
WHERE 
  key_id = 'c3f7590f047014f00bd9171c4be5e7469dc9c328f247a1e484ce661129e448d5' 
  AND (
    token = 'MlD6RFrscujKXxUE3mpeTpAXfzPctz8no3BxhlPXrHo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )