UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xNZWx3z5N8gGnhSpv1VzVI6M/mu5Zy6l/fhkadBDXng=' 
WHERE 
  key_id = 'cdc7a0b84a462bee9fc3e9341989d90885629463568faee1a87f63261b153a10' 
  AND (
    token = 'xNZWx3z5N8gGnhSpv1VzVI6M/mu5Zy6l/fhkadBDXng=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )