{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0x27a8b3c458b6d4fb97e518aea6b5bfeb809f62f9807e9fe18e2630711940d75d",
    "signature": "0xb3576e0349af9a9a9cfd37187718bc6b20ebf01d55debdb36078a596b074414a5ecbd31688948d9979da24a52aabbd29e77ce6dafb1965b09a54c391096958681b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}