{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0x19e919273f02cdc74be817b220684e28c8acaa3e08417b7f236e6ee9eb21d8a0",
    "signature": "0x66a2336920e8168576314ea9895c54b5480ffade802a69e39473dfe97e918f246cde31348f22d1e56783f0d336090e17890c7e342eb76e5d86468ce580d6822b1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}