{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15836",
    "entityType": "User",
    "nonce": "0x6e6635693933c5375a66e7e3043347800f747cd99b5508c876a5b61cddf963c8",
    "signature": "0xb502705da5939790bcce8a2aba1c969444a188789a23d33964bce9080669778d4f229a9d53f4fb53ebceeac422f810a103bcb2e8aca23c33a390bae631b320241c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}