{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270209897",
    "entityType": "User",
    "nonce": "0x5df9c4e094cac325286608cda6b253e9d234c25af026514f2b916c977162eb6d",
    "signature": "0x106feddfc98ed6710585caf77af935a9ba419e45161e29dc39ae9cb70ee17bc56e23b3538a0dbde981f307b0b00d09ccb8ce18219e0a36203f39f8a6c14a17461c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}