{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2ee1a0e8fd174e44d1ca35d7f3a6d0fe329d12129d1fe56ced00afa227dde11",
    "signature": "0xfcefe6f765e626f4913abd09fc970f36134c144457169515b5492e3d7fae492479eedc67302996ef81c0b00e91fe8620796021928ed3bf290f80309e5937445f1b",
    "signer": "0x948D77DF55Fc29CbAA7bfD556885c50A8dC7814E",
    "userId": "839476571"
  }
}