UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i4iEfh5pf8zBKYjtNbIrw1VvSi/2WxNRaOC71NImbxE=' 
WHERE 
  key_id = '68c48a7f6fc567edc2a6b3b1196494851a20311b576b4aabd9afc3a7a63e9e08' 
  AND (
    token = 'i4iEfh5pf8zBKYjtNbIrw1VvSi/2WxNRaOC71NImbxE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )