UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'aZ4mBAsrpwB71ce3itFBFIcWkm4Uu7P7AYO4uYl7EGw=' 
WHERE 
  key_id = '93e5bd2d9736621979185762085ab70af4d976ec7a3695483084d4276a37d254' 
  AND (
    token = 'aZ4mBAsrpwB71ce3itFBFIcWkm4Uu7P7AYO4uYl7EGw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )