{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1713713",
    "entityType": "User",
    "nonce": "0x01ebf003fa92a99c4e46b5706c6065ba542409be7d9d20d0fa656691b2f806ce",
    "signature": "0xcd7da4e541652498f0d41eda4945cb3b0b956fdd74298483629d965fbd2aee2c71e3cfe2caa082a11a934c4308b756cf7b8acefb6a2d91de8316b1ad5dd63c4f1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}