UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U2WmDunWMyT74GEHnWGtve7x1b3vZAtrUFTbYekzrEU=' 
WHERE 
  key_id = '18128eb9fe74f95fb2b12dcbab316546b8cbcbf17d85bd659cf927cf6f6df893' 
  AND (
    token = 'U2WmDunWMyT74GEHnWGtve7x1b3vZAtrUFTbYekzrEU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )