{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0xf2b644c30bdab29ce4376f680016eb5a4bf40c77847187f7aee29c8d64f18818",
    "signature": "0x3eb30592a05c522fec14da7693e65345f16d8018075843bb10bd0496d626975f7d48a9ebcd0be76dd64564644ef71a1cb6c0c53ce76d6d6b9603d62cb9b277f61b",
    "signer": "0x3B13b5370f9Abe46b4FAF607242E5bf602E2c8C4",
    "userId": "195900597"
  }
}