UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8e04lPsHNwmG3sCwdT8GImkz7kzcD3Fm3kRO4vuNhWc=' 
WHERE 
  key_id = '31a9e972d5277d517dcb0752da856ee58c60cfe09245d12c7055a103a4d507f8' 
  AND (
    token = '8e04lPsHNwmG3sCwdT8GImkz7kzcD3Fm3kRO4vuNhWc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )