{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "502409808",
    "entityType": "User",
    "nonce": "0xe2f2072a6cdd240a9cadec2e83b096f80b65aae41e48feb94a3b7e727f6de8f1",
    "signature": "0xabd95bf1a03da1a6e9dd9df1691369026aae267100f031076d1973691cd8576d5b0ca53383cce6e0239d958bfbac99828d7027fdfe3fe1424f4482cbea817f931c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}