{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "811248680",
    "entityType": "User",
    "nonce": "0xd678512f777a8653b19f71a5c26db1504b7e0d5bc6adb7960e5cef848782404a",
    "signature": "0x5fb455d90992a9c41a14eb1fb7985d031520fc0b5c652fdbea3d78b278f006f33be09939cfbde94b32283408befaf554c3da2c4d1666591c3e6e906d6e0090121b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}