{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8196",
    "entityType": "User",
    "nonce": "0x154f417b242f0cfecf03f9f76d1fc8c7f191a94bbce860bede21bfb84154acbf",
    "signature": "0xc052e5ec69acf02e6a8eae8c01c6de1d12a7e5169dd8ead31e7387217720063c120473465562524fd41f62cbbe47f34e39b8434cb8d23d4925720c16091de34a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}