{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268900563",
    "entityType": "User",
    "nonce": "0xb1ea11832c3cd161226a8d078f76bca6b931800d2bff2a8cc1364c3ccee573e6",
    "signature": "0x1017673cc5a44d45191d708a084fa3f397d79539cec8251583bf6e0aa9e227e5429d79a59e523620a6062903eaca33e33d835f0257fd0358ad0c13c31c7dcc9b1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}