{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "184931",
    "entityType": "User",
    "nonce": "0xe686b7f7bc18e6d195919401021714c568bde5a8d3bcfaa00860cf108d53ae6e",
    "signature": "0x3091389ff055fd00371fe2aa226c2bd17655370d48bfdc0acad12c6d59e853b1758571f07be6363d3488586ad0530c81c44e362abe25e54f7ab5a521b9253c531b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}