UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/nguzbCAubxvV7tlq8QpnWodIznlC+quiVbSEDB5xSM=' 
WHERE 
  key_id = '51ac490c1843a71f2f1baf24d1739823fc0a21096127379123d41f23e6968480' 
  AND (
    token = '/nguzbCAubxvV7tlq8QpnWodIznlC+quiVbSEDB5xSM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )