{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad8e95828e9136629bb78eabcaf36e9f8ca7bb6236072a68f9f588564ccf8371",
    "signature": "0x30c12dc1ad66143360f41d393ffe58f50ba0734f522bb19e3194a35482824ac430841e776ec3dcfdf95baa0f86ee4631ff30554df3ab3cc4161bd223208fe6291b",
    "signer": "0xE86d9b1B6A3FC11F5E92fD55a438137361f97229",
    "userId": "353355636"
  }
}