{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xdfe77e5f8948c020ee09d5194bc806889014a24cd70c59b4a384a9226e4a1b0f",
    "signature": "0xd7abdec36924a542007c63c024860da88e7fca412b61bfb5b0744237d0b1078a5773bf91dc38b9a72bc6aa6b3b62265a33bd41467685a91fbc6fd8d6378d8c8b1c",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}