{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353549514",
    "entityType": "User",
    "nonce": "0xcaa50dd9ffa55d8122f97dd1a1a7b70b720e73d7cb801a8f40c2d9094ba92b44",
    "signature": "0x02cd2eb234ea5c5463ba3b5bf73d34800fd38c9100cf37af67a8bf757583887b5baa85729fb34d4fa586cc62b5168b43335b4b7f50445a6a458f61fc08d9b2411b",
    "signer": "0x811B619477Ea800Cc8e7fDd08cEA323eC3E06411",
    "userId": "791433195"
  }
}