{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x3a567dd1326ab2be1f0612533e94bd7b1edf9fb3149f409476ce7eccd39b05de",
    "signature": "0xadcefeb4558bf3ad7a10092a82e0b00c1443ffa2ad675fc5dda24100c182630661466d9c897f47fb92037ae7d31e4307f1e78f2f87e3ad26b5faff9c2b422d731c",
    "signer": "0x1Fea0fA17c32fD36403e7b0aACB3845AE7a167CA",
    "userId": "450050052"
  }
}