{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17121",
    "entityType": "User",
    "nonce": "0xd93144a25b58e29780e871957818b852dce4ec40e49f88d91da89fb259ae701d",
    "signature": "0xd9b666dd32181ed34f532d177cce2c757f4f8b96558b7e3c765812658ade89d46ab9cd7e7edec5be1d440df5500a43a206569c65613a55441239b5e2cca11e491b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}