UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EmWM206vPKtkbExwhCNN14fYA9tERv98kaz1LtG6WjI=' 
WHERE 
  key_id = 'f86620bf6345934b442e20df2902f3f8f7302440e6d3c7c5e2b8da8db0c4e176' 
  AND (
    token = 'EmWM206vPKtkbExwhCNN14fYA9tERv98kaz1LtG6WjI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )