UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dC79a2oYBywGy7n3tUeVxQfm6FYrweIIKzKyCViZmdY=' 
WHERE 
  key_id = '97770a3d75ac2d96e76df90cd077334f709f69173556b81509b24863248c69d8' 
  AND (
    token = 'dC79a2oYBywGy7n3tUeVxQfm6FYrweIIKzKyCViZmdY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )