{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387832",
    "entityType": "User",
    "nonce": "0x91f0ee4953204a16fd9ecf81360e30c93cea195aaa3c53f55efdb34aac740c37",
    "signature": "0x024dfd41801e7ee6def77f8ad82362c3f92f316f7cac08fc85fe5bd5a5ee1d92298e2a5d4fa00eac7c559ca6d559db1ae87074c5c398d8194f15852a4a9bb0131b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}