UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mhPVZGKxAVc5itUxs7wjzu9qtWTttmp0PvVE9/Z6GiU=' 
WHERE 
  key_id = 'cd8913ba12d2341b71216fa42caca524e6a73ee292717debbedeb71a8d0f8107' 
  AND (
    token = 'mhPVZGKxAVc5itUxs7wjzu9qtWTttmp0PvVE9/Z6GiU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00043