{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856877663",
    "entityType": "User",
    "nonce": "0xae3b35c06171f12ffa96323ac79d9aa578f1cfdaa5d080f61f9db81ccf1d64fa",
    "signature": "0x426258badfd7b1219b4e32597896719332d4b7a38ab59a3baf75c59e303db3552b47474cbc682bfc790718c12f5b47680c0952b39ea8524a616e27ef9ec535771b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}