{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1780232",
    "entityType": "User",
    "nonce": "0x416d835a3b5cce43f09aaada619f13458f2c9b246cf4d2621f1979dcd169d01c",
    "signature": "0xa7568bf44ac14d3592a5d79347dedcf16744c7a3b91b2d9225bf1f71819ed3df33b5bff92a27a567c04d1c18e76a783f5b4741f10f06ad40d7b562accf8b4ff91c",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}