{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390023",
    "entityType": "User",
    "nonce": "0xc4c198249eea71218020c13951e1f9253a76c474cab88cb41d420317bd8b7d4f",
    "signature": "0x0562912609e99b92ad6a985b43353e58864ca56542b9135a10b28a4d298d04245e84514f8cc9c235959f1b080d17c6a9a3e9ecc5f18eb0c2562fac796da011941c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}