UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YtYa5BGlhfUxn3Vv0vAXpks0RUkPDA1bG+nNWJg1VD0=' 
WHERE 
  key_id = '51f2903edcc2225f56adce931f0dc8726085dee812476068ed082ad24590acdb' 
  AND (
    token = 'YtYa5BGlhfUxn3Vv0vAXpks0RUkPDA1bG+nNWJg1VD0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )