{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57309",
    "entityType": "User",
    "nonce": "0x984d6f7fc54c40bf0aa197097f056e5fb2ed5f465be4e0191bb14d8b54a7c998",
    "signature": "0x9766c8158db70bb2a08392846f0a36de218d09ee154f568d2faa05c7f97310a074ae705cf83c30c9df9259fe77514a8f6810fa64104519227eded155708d76e01b",
    "signer": "0xe28A05dF906d6A86C4Dd804b23747E87A9a10BA3",
    "userId": "403179"
  }
}