{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x5f195dd20dbf422cff6680e99c09042dce4bca29c369f22c58263b31cda6677a",
    "signature": "0x60c1e899594678efb8e39612a39afb51b5634411728663ac97d931c6f878389107d3d99425baf124930e3cefd7fba4ee257c8367073518767f4e9652049fe8871b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}