{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xace93a9f4dbd2b487888cd9c0498624de9c681f3bb44c04fb4cbf5a24da0c636",
    "signature": "0x7a8c9fac8ba66c170b4d0ef8b2adc9d3c9fc725ed27191bce04439ff9e0a6822580a1c97b79e108878696075ca8d7bc9d63747c67ff9c22dcc9bb517f7121cf21b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}