UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i/KvwiAIj0ZODOLchh9l87CE1Jn4vpz30iI53qWgPeQ=' 
WHERE 
  key_id = '6ed825740852fa423af8978c63b0ee98cbc2ee6f06aedb5b88d978928a9f330f' 
  AND (
    token = 'i/KvwiAIj0ZODOLchh9l87CE1Jn4vpz30iI53qWgPeQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )