{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780083254",
    "entityType": "User",
    "nonce": "0xc91134524b0bc693ae8a40ec691fb264e73647a54d41b21e6490faaf02f35907",
    "signature": "0x1b970b2b825694e6a11a5ba85f90075548fed928b81026a3332a4604783a905d0bbea100a19ce39e0977f7682eca386f8fce6d7c16a18869515615584845e5851b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}