{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0x7b828d0905cfc914f1d5ccf3175ec9f19ab655eaa88ecbe17e6ab1d868db1287",
    "signature": "0x45c672ff8548ee7341f7443a4424e5cfaadb971708b955153ac4277d67754b53773a505e646cd7890928d9e4978891cf1fd350bfb9f55cbe389946c5f5b9ecfa1b",
    "signer": "0xb56fC8198ae97f6F430574C70EB86d5A7831d185",
    "userId": "357890672"
  }
}