UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vj9s8/MVznbALy86i3flFfAsMEExXXov7KLTO8kxLUk=' 
WHERE 
  key_id = '2a8baea5fecb39a1d19f3be341321751a2570b1046c4b0a498d7dcf7b1401833' 
  AND (
    token = 'Vj9s8/MVznbALy86i3flFfAsMEExXXov7KLTO8kxLUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )