{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x10b0382f00e5124aa9bf661b401237d7d41dd42f026c4c3b2da874d3ada8d3ec",
    "signature": "0xb45130a81c86d89158805bd29f8fab0d8b634a76a98402b64ac5af077ebe7af20658d29e2d13feacfe75d1cb67acb0c01f52f38d3b18f6216d85882edad347ce1b",
    "signer": "0x03b01495503C123604F638B60FB3dE7DD0eB09D3",
    "userId": "940449048"
  }
}