{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56990",
    "entityType": "User",
    "nonce": "0xbf37403b35a9c413cdcc0df6e7411dde120ea9eb193b87b84c221a6e0a527722",
    "signature": "0xa6d19b75f72779158f2bb53a31ff37c413439348e1135833fd18d6167860a4be2d8e011251ea97f4fa8801e6cc8816e8f1916003cdeacef2a26737b50dbdbfd81c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}