{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53757",
    "entityType": "User",
    "nonce": "0xa1620cd4087c8f18b23156f1fe50eb128e12d8d4844df63a22aa366b507c4275",
    "signature": "0xe56c049ffc0222259eadc0e9921ac0213382a34dae182ed1d90c55447a7aa27a780955d06279da59a141a517ccb744cc2728b6f8f65075f3e981118e3e15fd0f1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}