{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x21f55caa81e8563bc379f4668c98e6a6a45a9277e9819cdea9ceb4532485803c",
    "signature": "0x02389987138d876ab669e65b5f87f39a9e50dbecda57a873c5ec7549de7a23d07cd90a2722bd249f86838b695fd37853a54ac4ec77eb7de06b6db26de2609f7c1c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}