{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x348568b9fb4ae5194e88e4ba8d08c3b0d96361aeddbfdd50874362a8a9ef64f7",
    "signature": "0x12ab9e76561847a2fe56f4c4794e28f6af53e0624d8c508238d2af71dad67357294ea985724d0cdffbe4bf04a4a1991cfcf35dc345b39ea093c75736abdbc3301c",
    "signer": "0x607D26fCBC981BBf1f9b7a1ee2EB8444b128239C",
    "userId": "68884680"
  }
}