{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806598428",
    "entityType": "User",
    "nonce": "0xdac9f2d6a886b1b8339e8ac0dfbf5d2a7cbed58cae86d930b7939e0dbf658d5c",
    "signature": "0x0f558fe2a1bc44e4ae07bf0f3bd8d46ab76dc2d04611e94e8079997682fb90a1021ee59e633ae703e900b35849ab34ec68546dac0382a9b117cab28d4e7b26f31c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}