{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x34e9f6ac9b2968dea64ae6842a0d6fdda5fdff1714d50af105556d06f6a1a363",
    "signature": "0xddea5d1ffa089060eb028915a318bc11c981a63cab84df5a517e030de287230d4cd768ba9490f3c2b4423601665ae47beccc12806a3ae2600ec9f4c75fd5b9911b",
    "signer": "0xcF7E6c02DA882ce2DA8a97BE0e9eE2c8c33C2675",
    "userId": "681323125"
  }
}