{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x16cd765d327ee7d152a0218037ac9d56a29fc3d2bb7b748bbc60e2007821fcf9",
    "signature": "0x615330d395955afe01e4d60a0b594d55685206b4c7c7beff009da2c032b97b312a55a27a86ac28d298bdf4bb0a493485417ac542128007c6e9d24a2edac1a9211c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}