{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71649",
    "entityType": "User",
    "nonce": "0x77873b2fff4fb37cac2289a7b765e6de9bb6ad49f16425ec35fd7617cd998a75",
    "signature": "0x3d9b7b866bb16597e669b9cbef827768835f8be6195b4c30c9a0a9d2c669286335fbcba7059082403b04ed55be3c4a04137bfc426cc39f85f99ac2b4699f86a61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}