UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U8L0zfUK/bmfFKN2iqU6MqlpEJHrLOT7fgLiMnSLr/U=' 
WHERE 
  key_id = 'a6ed723c28fdf01e8ed8372cc8de2011143db0f51814905fb728be66f8dff579' 
  AND (
    token = 'U8L0zfUK/bmfFKN2iqU6MqlpEJHrLOT7fgLiMnSLr/U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )