{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4d24f1cd308d281d566a8046e34f9df5735d7451c804b9a53ad8b285fa553f44",
    "signature": "0x94bed606804cdf3e1db4518433ebf4c0edc9f8e9418ef27e7f3ffb0eb88b78df7d7d1ccc6c7c827272d1ebf0a63d1be801ad928c1b487ccc7cc0a0b82fe319d51b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}