{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1429398",
    "entityType": "User",
    "nonce": "0x33a376ab0e1c6718e9655389b75970c38840ed4bb85e1eae9a289212d2fc7bbe",
    "signature": "0x34f47b12a5b60ddece68923c52b2361a9d6c4fb112d067f413eed8aa26c1a02058937e1a6f60095a99d5afdaa4ef2004b4ec586337c1e7b809bf0f6eb69b29e01c",
    "signer": "0xc57645346D4df520211Ded3E5Dd676C1E3a8746C",
    "userId": "546166252"
  }
}