{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7498",
    "entityType": "User",
    "nonce": "0xbc762afb243b52879af54b8e08c1f9b17a20b2e84babea8a05025cfabb288f7d",
    "signature": "0x87c06f6cfaa1e3b6168e458dd7509a77a473f04869024625c0e9a2e2f870bec037d0b17062d6e33a99a6d3be3edf4471f6ada39b35e0bee9b2b6ac051e4d69901c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}