{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6f97cb2fbb2de8dddef6dd24c2fdb597dca86188e1a83eb6f7d5a2b4f59bc44c",
    "signature": "0x1978a93ba2d6f41a4cb144a1e576cfc7e6183614b7125ece4a6d0f4dbfd37ec434a7951322a4880383a667d644feae86e2d0db9f70f2cfe7aa1624426ad14a7a1c",
    "signer": "0x29EEda1E7eF2d7C7B5dE243F5b7de53F1E2d23Ff",
    "userId": "817425333"
  }
}