{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25e325edaed7e7b638f9617b572584e2fd6bd681049d2fb2407148d7195ade3c",
    "signature": "0xd950419b9da3857475f8897ad344fbf169fb63d966eec02372b2e2f6306bfd454ad4b13463aa851efc28cc459f56799cb8dfc84dfa1d8f71be0ba3e9ebf92f481b",
    "signer": "0x7276aC2A2567A39A2393ADC16cA2Ce34039FfD3c",
    "userId": "598977284"
  }
}