{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67658",
    "entityType": "User",
    "nonce": "0x2c7d98fb6b6d5c0c0d9443d4b64b4d5ee3a59c3672108f57f299cbbfbb85e49d",
    "signature": "0x7b58b678541dcdda61eb0ff585c9c9f459a3d4d108e9663214493bf8dc6835947485f1677ad1502210d8057b321b98fed0440c6083b584e679fafac1d9b47fad1b",
    "signer": "0xf9Bf82B2ecB609ee37250F00C0835d529331385D",
    "userId": "654530894"
  }
}