{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xabee74a720edd9a375aad737ae5fc476093637c8c421ac8b2f8e2132111044de",
    "signature": "0x23d21fbcee6c4701c2248cfe66280916ee23632cf30e77a77487988098f2dc4c7b9f8fec43ff60fdca922de2750cd0234c6853abfaacea3972fdcb667a5ebe3a1b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}