{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384670",
    "entityType": "User",
    "nonce": "0x47e91044e69d87ef7718377efc9dc158a460186d1908db2282a460277fc0974c",
    "signature": "0x53299ee6c1fd7c0448c2e33aa45762659ac8129b6995f2c5ea90cf07b4e4d9ff226eef36f783b5583a5506554122d782b8fb1950b65df059a00ca613e489fcac1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}