{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "963075181",
    "entityType": "User",
    "nonce": "0xb54c94afc9bf4abf88df17f7fce438b813a7501789356b74adc11ff795c6851b",
    "signature": "0xc6be519569d2e38818dfaf8bb74cebed211916bd1ca467743df7858649067f3265ec7f232e3ed9d3dd0968260e0e9409e01fd6cb0fac5c346f4794f14f32306f1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}