{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2684",
    "entityType": "User",
    "nonce": "0xc4b46acadb330471aee0ba04ed0b1a39f78d1d1d7662caa804bdc269180204a7",
    "signature": "0xf76582bc659aed5f7a49ec750369ca544cd7aa348e18b01a041f2def893d9efa3777d7f24c6c3963786eaaf4bb882328907288c3fe451485200c7ea2750f995c1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}