{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73287b11a5d0ee2f7911e88cf7f869f54796b172adfcefd5b56db1eb2885b611",
    "signature": "0x45a9b01bdcb4d45670e4077cdf4c93433972c5f21774f2c0683a1709601b901547e43350b43b32933a7ecfdb21c27a8eb51aeb1ec9a9ff623f967cbe1562a9051c",
    "signer": "0xb79438fCf8EC978203bCA0D77DD30F538E419611",
    "userId": "818392851"
  }
}