{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x2d1c146d3f14c2035295356ab3ae27acc9551b11564e95b75bba82c711caa4e0",
    "signature": "0xcab0aba9a3313d2ccf745f1d88a7ed940827f1ee24cc480832c694d28eb6f9e81bdf3c328c5588e84d2e177dedb6ed8403a0ce4e1999157e124cce38fa38ec4a1b",
    "signer": "0xF51BBf2D093bbC94555bc2299Ae53Ce8F7963374",
    "userId": "38277"
  }
}