UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AtSbEgl+FpvpqKTjxyWUO/C9OBJlzy5mDfFTa5U2nS8=' 
WHERE 
  key_id = '6243326c5f574a24ea0b75f01140441dda8e33cc24e2d9980bb8cf9bb8005549' 
  AND (
    token = 'AtSbEgl+FpvpqKTjxyWUO/C9OBJlzy5mDfFTa5U2nS8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00037