{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d0ef98b50dcadac389160873ca0ab0c1438df6b200c65ca9ab1896b80ab127e",
    "signature": "0x4ebc9b97449c3ae46fd38b5537dfae590593b69e16aa0029ed06b66260cd8ae0332a2d24c18078ba906a318dc060018472b90cc2a3582c1edcc571cf8bad54041c",
    "signer": "0xf88ebB4A7b9554f7ae141008973ca77a33815188",
    "userId": "826733048"
  }
}