{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xd86f32f2c4defb4e15ffdea29c91cfbf8ac94d9136e0ee96e4d24528e5a6a4d5",
    "signature": "0xaf2adb70adefceaf9faa8c2a0baaeba2de2e8f9028b4d8f87781f31c38dbbf6b5af4b82c7ec14e7bddcd72b9b59562035adf842c2c9b855d1f04bd9aa80a7e1a1b",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}