{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324297",
    "entityType": "User",
    "nonce": "0xaf01ab3e17fee67308cd59f074be95983b9e008a9be1f1015721b2c002f59beb",
    "signature": "0x15caf820d935424809d3f3faa50f5bc429f0305b91896b95d537b5ac72ccdfcc16768e9458eb881c12ef45352b223f49af1665c0289dddf8b5f21a000deeb5f71b",
    "signer": "0xDf2ffE41EC259B85B3F9C88700b293499D4Ae6C5",
    "userId": "339350040"
  }
}