{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0xdc342e0a94ff11dea4679990330bea9c2ca3951ef193559533700911431f8142",
    "signature": "0xf5628cee9c86025afc0effc4ddd36b57ee18c56532629261bc02488874550f843233b263b2ded251fa35876a1a413d1f641decc0d614a3f8f977162df86b83681b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}