UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'czrbSE+2JAUjtUWv2MkG83sVvCWFlkciXC9DAbtkOfA=' 
WHERE 
  key_id = '21f71b52c62db41ed87378daabd1be80cc820722afd18a9ce67250b75e884358' 
  AND (
    token = 'czrbSE+2JAUjtUWv2MkG83sVvCWFlkciXC9DAbtkOfA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )