{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xc0f3992336474ce8807b5b1e68b1ec2d23797a8959c263b040f12ca45d88d82e",
    "signature": "0x8b5fa57e39eff0100b00b63cb287a227655fea5c5081fc702d0e87db9820fc62108a37613d6caa34ea8acbf8b5789a83abbdcaa2c2ef70be9071b08caacefbf81c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}