UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4ST5BeWYOFcbv0jyqlddMYgn7gEyPQcJja1joHgBBYE=' 
WHERE 
  key_id = '47eff7733590ff35db0e95a4a841c61167117c2ca6f6791689af62dae6d5d47c' 
  AND (
    token = '4ST5BeWYOFcbv0jyqlddMYgn7gEyPQcJja1joHgBBYE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00039