UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nZCydG4wUJB01YaTn6qLtwZsKz/cz9WVCwftk+mG7uE=' 
WHERE 
  key_id = '7a1d5df6d3a1476145308730dafe06003095ded495a0f789ae6af180796880e1' 
  AND (
    token = 'nZCydG4wUJB01YaTn6qLtwZsKz/cz9WVCwftk+mG7uE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )