{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270209897",
    "entityType": "User",
    "nonce": "0x0a3c55d622bc5daf5da8c7ff128def75ed95ced8f0f86ab4eef9d41f9abfabbe",
    "signature": "0xb9468df7448a41ed3577777d8c767fc126a0cc28a1df33a1d57066fcca3d6d9147c54492bb00f4606b996fe0c561b6ec8f2220aca1ccaf88ec2715d070dd703d1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}