{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "178912211",
    "entityType": "User",
    "nonce": "0xe0997332d616954500081481f096e9966150485896b579a3a77e3e5dc050ca25",
    "signature": "0x7a6a71ec923dc97a92b9eb1176d6df59c9664eb1332dcd7754ed5042fa2cbd1017f7bd6cfbc258b8301a7213e7e2aeb923d96a2e75e0fb1d74ed93c95e4e49ab1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}