{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf0e12983cda9128f41d7f69d24955ff67558a237095c7c31419622370111a041",
    "signature": "0x7c67cb881ad678cef213688b0f26f53a3edf79ef79b70f7eb00e01aa078b737a11a55b31d1a2ee4fc7982f7387a3497b8cd617f0e5834999a94db3242d7a73de1b",
    "signer": "0x3296Bd48491c2e85014D3211d320F74CfEf3599D",
    "userId": "844885039"
  }
}