UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mDQAi/BHamnmzLuoJbYQErzBWdjpCbaMkY9NpdICy7A=' 
WHERE 
  key_id = '4a5b8094b2113d48f51e471d9aa400be779794add44d5c2cc95f17a49e2317b4' 
  AND (
    token = 'mDQAi/BHamnmzLuoJbYQErzBWdjpCbaMkY9NpdICy7A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )