{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x088a869d0b95b3e676ea6185922e785dc429e94f2e01e5e6ebdad99e76f839e2",
    "signature": "0x59319b0e729c9f0f6af086b83095152505da275bcc92562a3f039788ecaa7fac3ad5ce83a9d446b3fef97a335b30d4153a506017c9470ba796ffd28c719f9c641b",
    "signer": "0x8AdF47d2120990458685806F5f08f4A0439315e9",
    "userId": "506981614"
  }
}