{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234429",
    "entityType": "User",
    "nonce": "0xd597849a2700607ef98a0d8bf35e4ea53db6c553f5acfbddb33da3ed08b5a7c2",
    "signature": "0xe7bf03c5dfd3764cdcf469eecfcb3b39c7b51e74c9ed1e60bc08ed7e303b96f85049bb4c5caf8af7215105932f779496a6b6855f6151f78ee5ea364e691ceecf1b",
    "signer": "0xD277ceeb0bE611ac6ee637c01A10A752797217F0",
    "userId": "742203663"
  }
}