{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xadc49f70ad198ddf4f46d98acd0eb16fcbc29748897e6c5a41df65a5e4fa2ce2",
    "signature": "0x21ff03d0d22e0ba243de747ef4cbf9aad5b98e85f47e68d4246dc22bb7b4504b2aafbc11d10c658ce2ee7ef47d059c899ade779432f484a845336cb13d32fa751b",
    "signer": "0x7CE1e2c76Da56C8F42ac953E7ff7c7F082799d93",
    "userId": "564916606"
  }
}