{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0xc95f7b366e383a091a5a94634eacb4bffb88e8fd99dac94c585769e6c311d86f",
    "signature": "0x08fc9f266c524939b119f08b67a8da427eefafd72a23d1634efd80f7bd2db1bb2e9dba0d28b6231776f62f0228b7e6316750dcfc73ee0a94cf875d8a21b308081c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}