{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3e706d7016b68b919bdeea5337932ef3f978530c002fcc96a49eaae5868decc7",
    "signature": "0x541b6cbcae28612d3ae5d7e701070810397f22e59dcda6f7c4b88b782489750c249ceaf597fb41a26b1d9c58729158d3cafa49a0a317e2926f059e77c7d218c91c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}