{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1054428",
    "entityType": "User",
    "nonce": "0x4d34ebf16feacf597da49ad43811e025d83c19d6bb9420fac074a575f6fa57bb",
    "signature": "0x3144f27dbe950a053d2e56588aa892cbd23364d82ce724672531cd42fc880ded2f73d6ce7d183a6f2b3a7fae7fb26252016463774f6693ebe0748e6d3aa78e3d1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}