{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x9c87baec5600c7c012262b357d44fe9dde32f483c2b23288e6ac0afa8b6dfc58",
    "signature": "0xcf8fde0bf1226a26368db09c6fb107f79b3865e5c483fb7d9247fdff10a24f664f7b922d2e855f6146bca2aae291f75a7637b0f8cc6f72858387f12dfb62b3641c",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}