{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0xd6fd18121a515b3edde01972f335df4bab1a745d62a429e5f11d71d866358916",
    "signature": "0xb34541f31ee439e3c3976083447f5e8830638172299b791f7b32670e84b5cd651ba0103a55c4f23f24126571fd7deb7ce6ee69fed32059bf9ee5567b4db137141c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}