{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129439",
    "entityType": "User",
    "nonce": "0xed83ee51b554c5c77c9dea1062175b27c323ad9104a8aa2a46d97e7f998e8ba0",
    "signature": "0x4c3f7f974380ac4ecf92880c96016bbd8a6d8adc70fa64f05c1fd806f487b7417f71f0890f58f1aa1ed679bde8b8b7577c64c28ec02145c1ce141c48e49066e01c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}