UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GWn638nHtjDCFGhSeEUmO+mg6hNG9NbWL1jidQurm8I=' 
WHERE 
  key_id = '21c5138fe904f543759712ea1deb7502b904b00b4570cfee4fd91c7b0783bc46' 
  AND (
    token = 'GWn638nHtjDCFGhSeEUmO+mg6hNG9NbWL1jidQurm8I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )