UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PRdZCbgEvLNGJLXHyljLQLuOC0XvEKTQc8ND2Et72lQ=' 
WHERE 
  key_id = '281a8809fbb65cdf50cd0ba03344f841e17bb8febf0316acfd0acc4d81410638' 
  AND (
    token = 'PRdZCbgEvLNGJLXHyljLQLuOC0XvEKTQc8ND2Et72lQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )