UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PXbPpJCTHOVM0k95tw75JJbfPwn96DP/FpPQsrs9Wns=' 
WHERE 
  key_id = 'b51c5fa16380a544a1f16a224734112e31ba24b53e9afe4912b48efd7ac421a6' 
  AND (
    token = 'PXbPpJCTHOVM0k95tw75JJbfPwn96DP/FpPQsrs9Wns=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )