{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcf8b9e18a2021fb427d194d7ac083d018664595e6eb6f930a65d2daa21aadd50",
    "signature": "0xe3ac41e6a3156dbe0d05ff807642ae06c7a6728fc99f9bd35b062b29f0b762ae0a3ccbde2f4365e1aeab53ba40719110ed94228c6e9a2aee865770af897bbe141c",
    "signer": "0x6c1C8d036b3c0119e31Edb58B17D120E6e91C833",
    "userId": "206524150"
  }
}