{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4950cf8fb0c8fec0b5b43f9cf20c41dd27a5c70e28369480c9d873767ff33e07",
    "signature": "0x05a8a480b3aa4bc461ff657785b509d0b72738484588531e485a171d1323e4be43e5ec7dedfa57438d2a95c8c03783f9e188518cac1750d6b078f6719557fc051b",
    "signer": "0x6aFe17E535b2A6d929108f7F963F9a119F573Bc1",
    "userId": "300002611"
  }
}