{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "252398720",
    "entityType": "User",
    "nonce": "0x1584d36fc3ccab4ad14744e26851302943b12abd397970e4234636ff31fa9e83",
    "signature": "0x24f04b6d14418183b6f87e173b529ca1708a8f88e5f6f39790bc698ed24eba92687505450030d7388307629e3cfbff623c9c46f080166bb4da90a1f832f58d381b",
    "signer": "0x8e38227DD54A2cCD0f3E18D72F07C5b54b9E7D14",
    "userId": "328851963"
  }
}