{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190190",
    "entityType": "User",
    "nonce": "0x99de4ec7495c22380eec72bc070690f0430bbed0e6d74fad4930cdb51c6fcd67",
    "signature": "0x53b6eda96180b2e6df6ac14fc57609d77b1cb93d711fb02d99d7b925d78b08fd28fd37cdf3ae81f1dbf64a8576d6870b65ba2d87ec750be035761169d12f45b21c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}