{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305012325",
    "entityType": "User",
    "nonce": "0x6654e090332edab8d74ac169079b6af0f7a34d4434d03f9c9b104343da1392ae",
    "signature": "0xdcd2ba10d49d2c7cea09b08c0ee1657a5cab28c4e2047df7b38abd442f85d2370b06ac5753a0a52cc1cc24286e10735c0ccd1645ada67175ec54174e01a766591c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}