UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'cHSL8RDIcmqrT1xFwaugX/WZqBwu52EkNdu8qKqbSaI=' 
WHERE 
  key_id = 'f6e646eb8dff425fe72922ac00a640f2525502e71d13e7b94ffdf15fcfff9d3d' 
  AND (
    token = 'cHSL8RDIcmqrT1xFwaugX/WZqBwu52EkNdu8qKqbSaI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )