{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "848219934",
    "entityType": "User",
    "nonce": "0x3b442844a667e29c71777dc7151113aee90a2af18d282944c74b3facbe73f899",
    "signature": "0x3338169f6271567569356d8be940741e6b64a851f4b503d71f3f090cee9109f724db5acf6c1b80fc1c6034f9e94efd18ef693b9f17511fa076157ec1d323e1031b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}