{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x2fe94d3bb9f54f6ca213947ab8e0da6ad3fd9840f0540be6a33c0d62f70c6b4a",
    "signature": "0x4e9f02deea97ff50a4e5a8d8bc407ef27c5d49da3161b12c81264ab0aa49da8b3b7cf32ed22cafbe3b4ca8eda1acb0f7265a2158c1b19b25dd6dbc0d4815e92b1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}