UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dQB9QTzDfGwPYV1MDNP5cmS324MOE6dXLvBQeqnIh58=' 
WHERE 
  key_id = 'c8b967c755b243a5c7476e0f0d8b79ad7f70aa3d5d2435e356e40794a3d1747a' 
  AND (
    token = 'dQB9QTzDfGwPYV1MDNP5cmS324MOE6dXLvBQeqnIh58=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )