{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8bf786d1b7798e2fc3a1deec076a65cea0eb6afaa985a6100ce4271f980f1f6",
    "signature": "0xd96e58ea866367827c3e5a0b96e934ccd1304d765df8abc9e923f3b44da5a7c0617247fd3c34be24ca50357ceeb5eff863036f5c329cac82b8ec3431dd25ccbf1b",
    "signer": "0x936222d539A82b8FfA7faBBeAC7b9d5952BA7737",
    "userId": "3790984"
  }
}