{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x233e6d4705ef336a867248866ac425902ffb2dd295ad1bf84c478a4fd0ff2003",
    "signature": "0x7069f930f5c5f4aa96a402c82e44109e0a8d6e87c41896f85a8f94e54489048e6691d6e10def9e8291dd873521fa17ce4fdfd775df531859f3484907f441c9c81c",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}