UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zKhG4i7DO4XLOWwXPgDihoBgIvWXd4uvBDdxURrlp4A=' 
WHERE 
  key_id = '918b6062ac774cf4677c5450ccfe74bfe8425466845a8c38567afef13226be38' 
  AND (
    token = 'zKhG4i7DO4XLOWwXPgDihoBgIvWXd4uvBDdxURrlp4A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )