{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "695524756",
    "entityType": "User",
    "nonce": "0xa866776b1afbd7185e43875440435c42a15683df45e89ea2e9bbbad13467f3f1",
    "signature": "0x0a18358195590625687f24b8de9f16f10c9c37abf95a1ececcb40e210f85e8d90f853d586f2ad5f11cf540be0a78f5d463ef9fd545f27dd1010f681c24fcbf0b1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}