{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc5a6a824059ec64a05b5944d4995e2d97a94020aefa6a4c880a015050a5d793f",
    "signature": "0xac64503a9eff9468586d6e263646ffb31c43bd1e2322994597db450f4a8f001b709280aa49613f813bd723aba7c738dcbf99ac2c469d5ac7de74cc2f834373681c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}