UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hsYuVeDrpoOh4YleNsJVnd/0b7mvm4IarmvYy+YIezA=' 
WHERE 
  key_id = '4a8f27f13e38b1fe66437baa9289971e32a07aede607bc99e5560c2906b63450' 
  AND (
    token = 'hsYuVeDrpoOh4YleNsJVnd/0b7mvm4IarmvYy+YIezA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )