UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0pRFQj9UOe5vhWlDsY9bm0zAHt6SbzGXUdpzjvckKuA=' 
WHERE 
  key_id = 'c6cf3dcb75d9c97ea2e609237682f2dab3d33ca66481ed7630c2bd3441e0218a' 
  AND (
    token = '0pRFQj9UOe5vhWlDsY9bm0zAHt6SbzGXUdpzjvckKuA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )