{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x038e4ee13319e71356bd805a1c1f69953bffe793cbbf54fa3b0aa390e16c1b5a",
    "signature": "0x7497b7f2a9c573e63fa1c3cb84e49fc4fcc40a7a9178ed4c45d1ca1d1da07a9f260e6b8599db4777c814eb6b17271bfce487d6559f18379702ddef71601720031c",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}