UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nj5NyLBSl04tziF++NddpkiDbDezAZoSz8VigwWcAMA=' 
WHERE 
  key_id = '4e21a591b101276faaee087e72255f7d28f17c8509b97f0209596c9b193e4cc6' 
  AND (
    token = 'nj5NyLBSl04tziF++NddpkiDbDezAZoSz8VigwWcAMA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )