{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220347726",
    "entityType": "User",
    "nonce": "0x5e71c88ed66db24964a125d58f6e83f8f05f33e6a5d6b89c10a87dae9e1d3f9d",
    "signature": "0x68c5bfccab29bf2454ab09ca31a3332c4e58c130fb78c4d4bbb6cb5a8dbe8cc77f42a9fe01019921d5ed826d028e5ca5288d56e15972d8e0bad8410960e76ceb1c",
    "signer": "0x43Bf48E8C105f9BbF6402590a0cc6d8c89d83C5D",
    "userId": "193670137"
  }
}