{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a2010098e54c9ba6ba4470b7b49d4bd841bd992f5374909f786ad1a5a6dd2f5",
    "signature": "0x295bf6ff46f9367c7c6fad793ef978cbc04a94cb0e65391020cadb1524ff860d3f31d4187a2dd9fad8e8fec72565cce14eb52d05aa8c79583544be45f58ec2f01c",
    "signer": "0x781Cc94c9884E8A8E2513e1c7a1Bacef3afA7A03",
    "userId": "717116504"
  }
}