{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348321",
    "entityType": "User",
    "nonce": "0x223de4b370c61190f94abdd482b1428f0564b48103d570e8c025c68b5adb9c78",
    "signature": "0xd4d112492d55c3bcd031437151ac2a168b1ed1043653b9b7b1f866f51c4356aa580eabe92d6e2240662a08d02d7f3f8a1719aca7a88745f9866b3fe8c20d35f21b",
    "signer": "0xf0cFA206b9d4522724e13fb1B9Aa62e31122e1fc",
    "userId": "222289659"
  }
}