{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x0933d01f4d6bd5d8bc871141d5d3f441b232d17343b0d9c073d0a9d2925aebe2",
    "signature": "0xcf06cc67a52b178c58774c79d8680b64c0f5ead38dba9cbbdecf48521180e779672220ea70b6d8b6712bf6b92cd0ccec345ccfa7149afb3edfcae5dc2ae3a0071c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}