UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YEWiUNR5B655AwZfH0oWjWd/1gD8RzSHnsviziHqs7c=' 
WHERE 
  key_id = '51842c2393ab8ea5a367746ac22c3c73aaab2ca888be26719dacd765612fd762' 
  AND (
    token = 'YEWiUNR5B655AwZfH0oWjWd/1gD8RzSHnsviziHqs7c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )