{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xf5f35fe83d8291a5c8fca18cab5e39571f3fef3cc15cf4c7c52c6bc49466a9f4",
    "signature": "0x70d843123254784b99661e9dae656c758d03e9f8c6a89d96d19a5beccfb0ce8a0b39ea33ef854ba54774786f9445fb2f62e909faf076b9dda84aad8ab6778ebf1b",
    "signer": "0x45dd4B563AbeCaB329e918D13925cDdFBca768C3",
    "userId": "265042309"
  }
}