{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcda08e94a3de96497f623ae210aa13d00e7257c5d17e9554fc7f3181609872b3",
    "signature": "0x4e5246ea8b994fab0f2363c0f816de669102b255950414fecc82d0f7c00691a243c011dd1c732f683638c98a767da202b54292ef0a5c4cf5117fb7b7a29ccb481b",
    "signer": "0xe26C66D5635e0Cfee21F601fAa02c190c7BadE94",
    "userId": "104724985"
  }
}