{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037671",
    "entityType": "User",
    "nonce": "0xe78b42f837190e56bfe4160b8f822af7cabc259353ed9b2681868d5c79f8c727",
    "signature": "0xb17fd3cdebdf8ad3257b83591af14d018970aa95095ca0055d98ec40bd0ca0e71a3c377264637fcb5616647a21ae2f3aced2ce055942ed01c7b09505d2f821aa1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}