{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428857",
    "entityType": "User",
    "nonce": "0xe117e626aac307c0dec685974105c6f563981aec71a8d87205530202d493ef8f",
    "signature": "0x9857ff4543517e6f74f19527298b76762cf723461301299c8065efee293bb8d64ee2c12cc3ace07d2741c683fdf68f165849f281547661ffd8e63213921907231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}