{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "84343",
    "entityType": "User",
    "nonce": "0x449adf8ceb970a56d10fc34e7aa0715295be09abda6c4d239e2050ba5f0c46c9",
    "signature": "0xd1b46682fe07ad3f4ba9ff5607b0c36b7add712bfd2ff54399df251eac97a1b16f246800e20bb834e4bac40619b3a48d344612d5d30d303120b75985d715d76e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}