UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g2WtKga3MUhB8cpROikbXcIu+YxBp0TOJZWVDH8GC9g=' 
WHERE 
  key_id = '83856536eadcced2f6eeb35e8c8915445737bc17ee2a4364286fcab7c0f90154' 
  AND (
    token = 'g2WtKga3MUhB8cpROikbXcIu+YxBp0TOJZWVDH8GC9g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )