{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x879d94602ee9724128fd1dc61700bf623abfc283db9050906cce15d322b52d23",
    "signature": "0x18957e43089eb82cb5534c74c7e835cb2facc8f2d3f53e169908d9ba5c388f071b93b7862a9e5dc96f76f49bb6f91a57a760eef32d27d54a46da0b9343e94c0c1c",
    "signer": "0xBdEDA9FCB76346C79650651637D11Fa62F197564",
    "userId": "138691010"
  }
}