{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x10d6229b5204e4e04ff9c4b3ebfcff10fcee3fec41904b2364f932d41436afb9",
    "signature": "0xf26f58948a44583d9eb05a5767d7da2183b0d8608b158259aced7ed317ecf8680827bcbf67504a5d229628f164da3e278f435cdaf2d77620d7f5253882cbe6331c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}