{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x12743479fffe4b0aeda099afd207a7dd10c1583ef6f545f54f2c4d73b894b278",
    "signature": "0xd40f32c574771432ec17d7e209280842ac7f808889d2dea6bc185a97fe6e057e497e06b8845dfd1ae58c06caf51ba91672b7fcf8d7e4bb53b78ae6f7f4e691881b",
    "signer": "0x0e779937330E0ebba46F132e8796de9E93042B24",
    "userId": "725182334"
  }
}