{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171877",
    "entityType": "User",
    "nonce": "0xe81991cc110bb22659ef0951f8a38c813d883f6d445acb4d6a6d5ca054f6615f",
    "signature": "0x928aa1cb2c1c2bc9ff07fa48c8d67a55e77cb3013f5027758f6e0f2a7ed3fae439edef61bee4d7b047fc804b3f664d7a6e61a487fe9e771ac029cf9537d981111b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}