{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x329854417660633e62c6a7a829b2d5211f23dfd7bd5389e0a1294e15275625b7",
    "signature": "0x06953790ed6bab6dac15a8160740e2f09583bbf2312f9c6bdd0db40c53da6e7d06e135b14deb3a7c668d1cc07945bc177671ee486b4c2e3b44ebd440a01581211b",
    "signer": "0xA15B16B79329FeD8a32235A0fe8eac6473Ae766c",
    "userId": "511938019"
  }
}