{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956567980",
    "entityType": "User",
    "nonce": "0xc73b1d0137f8cffe56d56ce84c614cb7574ffd9f636f65cae7106ac3cf2d02f4",
    "signature": "0xe04cfb9c6d8d026c38bc3e1889590c3cc34d7f08f581643d5da261cdbafa9ea01b2d309efd4da946d1ad01baa03751a9424f38a83a63f29098184f72e77798161b",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}