{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xfa9b2bfc703ccd1ff053dc073538c6b1204ca96cf6cc93672c03c67e8fe1c8ce",
    "signature": "0x2d3448d029d535b17862e00cabe594fa31922c582b5f972d9ee740fba253f12b7879d30ae232a641dcead72298315b685503da5a8328145de94e5f943f99f8501b",
    "signer": "0xF4b3744A3acf7b2f977947FC5C559952b7ca4C14",
    "userId": "938222319"
  }
}