{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe41f9961cee3d427b9d304786696e5ce6a8f214d649cdbf48feb665449658168",
    "signature": "0xe2069ee201b27bee5a9b254d3fa441bf635dc1fbd5511a16915138b6c1b684be59434d952d4a5a34685ed5834c596fc8fc7639a95e5818260b0651cb2929fb241c",
    "signer": "0xc2B329a6bad81Ce4678601c83C7F923463663872",
    "userId": "487406085"
  }
}