UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rEpVlqfslZSVrYG8hMbshKUrgRXUTb8Ls4DdbHKisYM=' 
WHERE 
  key_id = 'db0f1372ff481efa26aa509bfe7fce11f188ad42196f480b829d515d38b0f434' 
  AND (
    token = 'rEpVlqfslZSVrYG8hMbshKUrgRXUTb8Ls4DdbHKisYM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )