UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KewRyPSPy6S0sBIBvx6M6H6SeixDx3/FjpdsklNBzbo=' 
WHERE 
  key_id = '49115d3a0baa7d886742dd72fdebe225089edf060267507500b530dfc2ca8d80' 
  AND (
    token = 'KewRyPSPy6S0sBIBvx6M6H6SeixDx3/FjpdsklNBzbo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )