{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323403",
    "entityType": "User",
    "nonce": "0x47da5b7c1d92a369893d9779a59ce11d29b5fb9927a1625d80a652b199689c45",
    "signature": "0xe373bcf5c0baba811a1446bd4e6d913cf083b4b519941c7425c7e5260a55fd961c10b27bead06f2b796c509f8c00f253e5c795dd793e4c03027683a109037b481b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}