UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0dmb5qa4WKtOcSyheHnT+gHgKMbyRSezm1TTG505+N4=' 
WHERE 
  key_id = '1cf41676a527f1f9eda4a171594262de97be18b4c7d6835d9a4a083472bab101' 
  AND (
    token = '0dmb5qa4WKtOcSyheHnT+gHgKMbyRSezm1TTG505+N4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )