{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "181211",
    "entityType": "User",
    "nonce": "0xf2031b6e2b3f1164ddf19e50ca890a31429b3dd7de88e3b3c196530f1c6b50fc",
    "signature": "0x5be8d5864a986fbbf525494694795f307c24f51655385a51e28cce3ab69babb7708272bd60a42f986e4792ac4e176dc73f2d09b882ec6f997a7d10c6eaed07da1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}