{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142643",
    "entityType": "User",
    "nonce": "0x9f9231b9744eb26cb888145624e40755fae63d8e0e9d0245e58757fdd6715d84",
    "signature": "0xb6bce471c41499b9568531cba8633eb632b6fe55a117650cc90242c4b9198b99117a01c960108050809ba33fbdb6547dfc05f55de3d5baeea7613cc8d335e0b51c",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}