{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329545",
    "entityType": "User",
    "nonce": "0xb489bc28f28af5dfc875362ccb9888090d990db9e77b73ebf993218e58a8a142",
    "signature": "0xd0cd4edb0f781dda5530f959f1e439b3eec5ab3aff3e466a67ca1b534955b1ea101655c799f61c2c186cc9111f39f91f305ad8bc29ce8caad8c0bed9dc42fb001c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}