{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x465f428ab9b1cdf9f3f0dbaa2f8d387d41970c6798cb49814df7e551d4caaea8",
    "signature": "0xaaa3987a74a0ad0863ea0e86a838c6dfc32fd990666f0193c9027803a05ce11523297b2bca0ed671d574aaeba29dfc1474b7f19ce447cdfeb6a31a2586698b681c",
    "signer": "0x5244eB0acA40437F37fAec1822Cc9b0a855f7e12",
    "userId": "785062536"
  }
}