{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x9b6bba4dc9dfe9ca4d64178460f4111bbb8e13058f9ecd2b6e0476b4ae536e65",
    "signature": "0x32e0e04d9d18ff4cbb33f590152c8a1260a2266025297a2c5a9dae9aba14d6eb0c53947ee2363ef760526542ef2682e63f32b6b7280bec8eefe96b7a4f8633481c",
    "signer": "0xd1bC12b8b46f2FAa152aB791052b4a26826F86F5",
    "userId": "481080235"
  }
}