{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "747669405",
    "entityType": "User",
    "nonce": "0xe65a736dede8b83a218b9d5328dda609d19dda3bcbbf8195913374ff0abe7411",
    "signature": "0xee909728c93832a77de11f5dd76c7453141d663bf396b4fdb0b464c7362558ac4cdbdebd7063bd83bac0a3822591f2e6dee82574b20b361515e259fa8b33a7ed1c",
    "signer": "0x1080460F21DCc82D7160d2C77DaAb22a92c4dD22",
    "userId": "162106877"
  }
}