UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RqdgSmrDI0axHM4OLwXfpYkX566AjNHZk68mDB7/IbY=' 
WHERE 
  key_id = '6a8ade9c8145fedf9ea71f2f4864934a90f873f0b6c5c887577c52c9043260ac' 
  AND (
    token = 'RqdgSmrDI0axHM4OLwXfpYkX566AjNHZk68mDB7/IbY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )