{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0x561e6ebc89d2ca022c74b3abf7785264a2620b1beabfad42e58f6cfcd69e4a78",
    "signature": "0x45fcd8062d5406e2a2b7cecd1af4e1befdb5a3d6fa011eca59bc55c1f5976ba316e001cc45bdfde50d09002c6c666d8af712b3cfad6916127a5212d8e72a0aea1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}