UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nn2zWnuu6pZ12O5GpifEccasOGBhW17rA7uEnsK1pPY=' 
WHERE 
  key_id = 'c7dd6872c3aae992c6f4d5db06049f541cbca7ce7b52bfd953339e6b3f07fe6a' 
  AND (
    token = 'nn2zWnuu6pZ12O5GpifEccasOGBhW17rA7uEnsK1pPY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )