{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392127",
    "entityType": "User",
    "nonce": "0x8df1299af76a7282dff915e90c942b1b51632ba1b1a775ccd6606a4cb91709e9",
    "signature": "0x41e6e4726795000a2f8af7ac34cb63d31357bfa8be93ba8044a0a077fc8804d71fc3124d2181bc001f1fc17533280ca219bf4d4bb70ce786d796cbe3a317098e1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}