UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nk0Qi3yEFUqHvfn/w/BifZf6bOIZ+dCinI7XIoUFemY=' 
WHERE 
  key_id = '2b4a82f4e3bc23cccd9db2c9946ece7638a5546325cd4ca75261bd43850ca803' 
  AND (
    token = 'nk0Qi3yEFUqHvfn/w/BifZf6bOIZ+dCinI7XIoUFemY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )