{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x96d9e6a0d40d8df136f9097eefa7f82e5678cb5315d6a215b3e4d87a3497274f",
    "signature": "0xb9a5cfed77b9952052169215e626718342a95eb0562f77e7a238a9f63b0050c60293f43e0fe9f1abdb6816fd4bd983ed7c748a14f3027d53a71c537e2a5754071b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}