{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "427249190",
    "entityType": "User",
    "nonce": "0x48f3c4e1f25e13cd24d3d94d71c3c4580d82bdc78da2d3d8043af4379c2b6492",
    "signature": "0x939a228a66ed57e1555680a98a5ab0eab3af8a7d5628c43bb848e3434480156d0e4c7478c132af037ed5c2e41714bead5113b773ddabf41126b7b67c30db57111b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}