{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378297",
    "entityType": "User",
    "nonce": "0xe3b03e69dc2eb024c8f83a5df23e70ff491d88e15d0630647255f0713c180825",
    "signature": "0xf6ba06d34990d0103fbc141f4a6bfff58e38b4b8acb8a44415a505ff8f278f89320830b3555c073c18cf4d1aded7bd8c02fedd0f7fd93658550a43de540f0ab11b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}