{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xac923848bb60a0e2683542b8fe1c8b610cbdc00315f4d679d2a2dd31eb1564f3",
    "signature": "0x20bfdb59aae75aada1e5a1f5c597a2fe5cf18ed0f1de00acf969326f610f516352597ec736bb64d31566b48e9e8530d0f196bda393a1c7e2db31adf18a8ca06c1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}