{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147907",
    "entityType": "User",
    "nonce": "0x4cfe4d90981d61d8b413e355a05b7acce3ddd6cd61ebf6194e934c12e9976dbc",
    "signature": "0xf9346680f76d90589fd70f378a825414bcd3985aeece9b5b2faba9e3f620a55511abedbd2762887dee659d95e497abb0cf27deec79a5c792be263934b66d9e931c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}