{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x8a9b44697ac6feae0847c95b08ae02732154bdd6b9d52c7ba5f2efb38c3d9d13",
    "signature": "0xad48351addbbff9cdbc4e3c9e3b348a879e3d6864786843759b95eee3dbb776f4be33d39c8ea882f89f7779cef250fec06bbec4d2611e1fcca0ab1e46010298b1c",
    "signer": "0x1F9dC682fadBAc94c0Dd4ca2232a3f490704a737",
    "userId": "737872723"
  }
}