UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mjI4Gn21z583r38WmFW9jcXxOSqeVu9hs4OUCBo8P28=' 
WHERE 
  key_id = '831402ca50818f9c90224c2aa53543ae71e39a79bb7a5d9e22555e53b184333a' 
  AND (
    token = 'mjI4Gn21z583r38WmFW9jcXxOSqeVu9hs4OUCBo8P28=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )