{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409864235",
    "entityType": "User",
    "nonce": "0x0fdaf6a46c46c579bc8e055a56aaf419e026a3c81e508da97c5bf725d654d30d",
    "signature": "0x9929d8b408b5f9ce775185d2f8fcccf83487dd8a39ddc8714a221f9fc381952b13ea5abf71d6f816fbe8143268b4f9bf3c20a1d3ca95e5f868df0a7d0c4e0bf61b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}