{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0xe1015ae6799879ddda2f93aad831e275e87f30929b59f78f2c8559e2a020fb4f",
    "signature": "0x0d8de57834173519ad989c2ba3c53e034e638676426b8324c800898083a30a277111703e6561acf7edaa152e5f44e3bda9a98812628f0aeeb12193f4c458a9381b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}