{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xfe4395899f69ac6df446b7759e1e8717ada7d0c5f5d55661ba5a3cd412aa4ec9",
    "signature": "0xcc1350dcbbe3520d5fc4ff0b2e261fbb94b58f2f0b3095f7e05273af4af5e6007efa05f73257ba60e522753fd60a414970f6d838daf1142cb78bd597808e9bea1c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}