{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326509",
    "entityType": "User",
    "nonce": "0x4761cefdb85a5e77365e0c01804555ca0f8049b7edd09456c484036a5367c50d",
    "signature": "0x8944a34ed314c180e954bca69944aa78f5c4d14e266ebe10cb9e88d5da8d0cf966bef83e89797661e819951b283c616c3f8feba2e889479cebdbada43c22a8821b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}