{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "939113546",
    "entityType": "User",
    "nonce": "0x534190b9d7295f70c40c1a1730b6af65078322f92e186880d617ef210c235e02",
    "signature": "0x4f204a3b074c34cf14fed6e8dc651430d7d39fc16da2329c5148e34d7c8787347f94f52c00cacd3b1e2d1a06581479043d6fb75693b19be37594566452f3c2c61b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}