{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x649a87a8806da2f5a0000a50dd1d0ed01cce71eb16d2b4eef32be38ba9d1c2c3",
    "signature": "0x92c96871806b96b28320896a68517c810c6545a65ee68c8a6520020f25cbea2b429f76f06575010a364b10a4745e7498967246b45f7f62230304ea080e4e79ce1b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}