{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "872142418",
    "entityType": "User",
    "nonce": "0xebab0a3de5c1b8a286bc218f17e25850573128adc46912b05f42249c8e563682",
    "signature": "0xb8ccfc1160fa2292a933e8f1d2d349e11f1a3e21885f2f49e4872dad4a3755980077b57a3a8746a7adb59ed9d8a97aeb2aa47e6c145f58077d90bc12db7fe3321c",
    "signer": "0xbBfBD0B5EC178aa6c6424bbf461250Badf857274",
    "userId": "746538338"
  }
}