{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2895",
    "entityType": "User",
    "nonce": "0x283a7b5a3b93f4b7613ba2233653225ff2e9d59f3cc5392c315f84878b826453",
    "signature": "0x9199226e0b6cc5b9e75ff6b48033b54665566f1f5db0df7f404b61f1860e1b024fa3bce2968bdf2d954d7d831890e6268ef069349766ca34a2bc86ad7ff8594e1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}