{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367804",
    "entityType": "User",
    "nonce": "0xdc15434fb47c5acc1613630311c414c82c0fa0260956c4e2438e8f1a0dd0031e",
    "signature": "0x843cfce28390352c6cf7449dcb918b5c4626eef011560fee5018017262a9ed016c1aa92121e2ce51aaf8fccce51c6dc78aea6b09cd9c8d5d472da9e62a2741c11b",
    "signer": "0x4f4C18220D065b5195F09E23993B70Faa751F0C0",
    "userId": "583021207"
  }
}