{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xe610a59102ca6980dac6ed1fccdca67f265408ac1ab04a403a61b04932e9cec6",
    "signature": "0x8fe8464ceb303405a2dc2d941c9855831ae07ccecfc5c53a1e00307196a3d9797e3fc15dce399258ab18aac42c3ff42cd8d59aaa19f04d9cf43249f260b8c41a1b",
    "signer": "0x8133D4Ea8b0296682544599637fe69F0E6B4126C",
    "userId": "76059272"
  }
}