{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ac0f21e3d8baf50aaf946cbd6a7a9ba28790fd115c53da2abc875522d6717b5",
    "signature": "0x31b50414917f71b9a85459379d8c5c023b0f2e3145f9ef2891dbdd63fc02b4f67c3948a9ed42d6233c4db1b20fa2b367ecaade311388a36c89881100a620c76e1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}