{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0xb0a795f70b7b52c53c141e4a13fd2e51518438d0eead9f8b3da5b17e1c9f5695",
    "signature": "0xaae90a10d9576d28a355e513094243a0518c76d0310f7a20dd5f83d35db40b3c14bf2cf63da651323e7936286c96cf796f679151f0f2c73e0c6e62ae1e8558cd1c",
    "signer": "0xcBFBf860488b647E167A7020ac01A0A0c34Bf981",
    "userId": "4601100"
  }
}