{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4589",
    "entityType": "User",
    "nonce": "0xa52c45a80a1c0e3b9bdde8edac29856386b54719a7a18bfe52dd2ecfa45fc2ec",
    "signature": "0x6e42a1733b8dd6ed44178306ab539d56a31708f93810e512b33314ac2fc953f30d179cb693841d2ed342e929315ba5645dada761f0eac7c8f239ea9b80ea0d4f1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}