UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yV0byPSd1DjXSnxMJCECUgLadaI5ewticmv1N3/4MRo=' 
WHERE 
  key_id = '8bed2fc53dade4918860240acd477be2473037e7a6442a4bf2a1992052cf0bd5' 
  AND (
    token = 'yV0byPSd1DjXSnxMJCECUgLadaI5ewticmv1N3/4MRo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )