{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319106",
    "entityType": "User",
    "nonce": "0xf177ab67bd76a90e44df19fcf4de350997c40d407d2765841df9db983911867f",
    "signature": "0xc45fb688576201ad2bbee03737c4ed4552e4ecb3ca2e2643127d6df60819b2cb24b021ae4f5cf5d3700b2c05572b7c2d053429ddb12848b199a5c34dda13ff9b1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}