{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "502409808",
    "entityType": "User",
    "nonce": "0xb282bf07c8807796b44747ba14bc1c40f48b16dd26e01625958a7c36741eeb1e",
    "signature": "0x1dfea01c309daab6bfa1b6adb0ec465c9a05036505a70e3410f692c454448e120f6c5cbf36e86e625c67882c1af7623c3569e693fa6f0a27a76e266a897716d81b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}