{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399520",
    "entityType": "User",
    "nonce": "0xa11505069a8350c9d4c2e48fa1f9a23f62a9ee87fb7889f73be6f26c972a7c83",
    "signature": "0x71ed5c0055fdb1b07e6abc29ad5c6b755d92eeb6238cb714125d7acd591a85157397b7c8e2254a3cc785507e8dd37352d1edee56faa85378fd58cecba5723fd01b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}