{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157628",
    "entityType": "User",
    "nonce": "0x41233775219ea90ba84b62e22d683a9952640eadc10c00b4c23f2b11955785c3",
    "signature": "0xd645b1e43ab7dc8b50010460f131542b623460abe546bbd0141b7dc71e2d6efb1c7117d0f8c67b6b0496ac254f8fb2d93402acfc714a1b3b53581a97b41016221b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}