{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2898",
    "entityType": "User",
    "nonce": "0xb063bb9a328b7296063e55452fad903650e2b180ff3b02872b51a3b68958b35d",
    "signature": "0x809578462c5a7e9f12f92678b8d743f3f75a94df52b0a6bd1159a95b7f85bf9a71f573f14ea7453a1b895dcdbc5614fe230f1e6e04145e5989aa7ddb66bff2e81c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}