{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5ff620bec7988e7be651ae4905ef3452c6cc8a581af9f1fc3a548539c82ca02d",
    "signature": "0x74e26243f506d28cdb8790481d79c91fa7a5611c3cab5044f70026552505d346096d7819b7d7fe1ac87a0349ec140b408d415eaa52690b0fc977a4f7aad1e9bd1b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}