{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52591",
    "entityType": "User",
    "nonce": "0xa9f9a8fc0f342e28f64add2e6ee01ae5bb6f08431fbd54971ed498d4bf1b82bd",
    "signature": "0x9975a26f4781bc207ab02dc513593eace0abfbc7a40893e94bd04899f60684f25e4669c3be6e14fb5635fd550ab37a50b8230c208aca08c81ce8e9a880228e771c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}