{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494564",
    "entityType": "User",
    "nonce": "0xdf10a9092d355f5c331c4a85bbb3646808814e7ad4c5e8754394ba560dbe87ff",
    "signature": "0xdcc909c5e50ab9bf228c27f34aef450510de5aa7a06affa7fe3cfc1928a811f96abcb523618e258b1ad974899dbe467eb7b40d4ceec2781d07290bb926359fcd1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}