{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16933",
    "entityType": "User",
    "nonce": "0xdda9d32d5937d8ad8797788e26c4db6da2ac6601408576997ff1fe6ce271a48f",
    "signature": "0x9cc9ab07c0d4e42aada602a97282b41a4a6e8f3383084aec357b8de2d1a2be813b269b276a018a39deacb336e8f7a7aaed968276ed46e1891790308b36fc9de91c",
    "signer": "0xf5E671DCF684528CeB5832E52D75Ef7ad62b1160",
    "userId": "688631167"
  }
}