{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa27ece17c27463cc38f0d511616013881e52d797bb576ffeb57aa64e0cd102ea",
    "signature": "0x46b62654d50c4efeafbccacd0e0668ca6b8ad1c20166b3d8171f80eca97ac1ab48668a4f53472c8d931f6e97e7741736521ec8d76b24d002a6d7e665c7b9802b1c",
    "signer": "0x8D4B8d8e56A114ee5549c22dD7a4fF78B74409A0",
    "userId": "28338731"
  }
}