UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zl8AXrF6xwfEmLOWHbXp1ehV4cUmEhgEtJ7PoemVUHg=' 
WHERE 
  key_id = '4ebf7e3814c93bd6668790344e77e53d744602347032979342ef192e1fa2f7df' 
  AND (
    token = 'zl8AXrF6xwfEmLOWHbXp1ehV4cUmEhgEtJ7PoemVUHg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )