{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x3464693bf15515561431f63ca7fa346cea1175061681b8637436c2bf9297442b",
    "signature": "0x87bd26377274d40ab2f9c9890eb6788641cd1cd2bad60517189a92e85f33858e65271088424f4f938f60a2e53a21142d39ba06eec6b93273eb3b4e5c4dade4a81b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}