UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'A7y2ij1x5gm6QaDkXa7uxZxFXmlYJ49AZrSaIz3aSFs=' 
WHERE 
  key_id = '3bfeaf57dc56cca9ef6323685e84b38ca3aae578bf4eac76973c6d9aa35d1a80' 
  AND (
    token = 'A7y2ij1x5gm6QaDkXa7uxZxFXmlYJ49AZrSaIz3aSFs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )