{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2015445",
    "entityType": "User",
    "nonce": "0xe4804e69b3478be2496da8bc32fd0386a10129945834beaab986978d0a4ec286",
    "signature": "0xe0b22193b52baf75506d0cd389bffcbbf3f94b24d001e733161dd7da2a7e651e724a9f6cea08d664b29ecaa6c59256c0e9162d4401bb38e30972876cab232ba81b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}