UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UGTOWAFQoESaBB5HUk+XuidXDqkZEqRUMK2iQVKrd38=' 
WHERE 
  key_id = 'b4084409ab8893c212b87f502a153b83a348f68b165651088b2c8721e98af4e7' 
  AND (
    token = 'UGTOWAFQoESaBB5HUk+XuidXDqkZEqRUMK2iQVKrd38=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )