{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880346",
    "entityType": "User",
    "nonce": "0x8f8c45723c04428023d946c13dd52a54fbc379b4b59064d0d19fef7891735560",
    "signature": "0x578f45b5ccfc14e58a651c0961f96cd3a043ed440b633e8ae6ee43fc13d529b41045e5110d75db65dd4626d9452061960d221a182365a80086399fb307faefe71b",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}