UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L3a4xZqfHS/4J0/QJO0LfXfIWw/TpwojJkFJcclJtsU=' 
WHERE 
  key_id = '50c7eb3f45cc8c57876f8e931b4b201b1355551825070b32c74c16d4da854f34' 
  AND (
    token = 'L3a4xZqfHS/4J0/QJO0LfXfIWw/TpwojJkFJcclJtsU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )