{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa043382890bb998fde548215dc4ad04d6719285d79d8b105c859710b45593cab",
    "signature": "0x95ae5215b47bd9fa8f94a44204d8ac9d000baad0622b5f03be29e7c840a205aa17eabe2459fc16edce0e3cb7c9c7d878e3e8291318a209e23ff23c7d099716b41b",
    "signer": "0x5440c29276C58761A1C9fac1CF686DACF3AF49b0",
    "userId": "734659738"
  }
}