{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383930",
    "entityType": "User",
    "nonce": "0xd5a40609ac543caa2593bf94d605f3d583797d4795806329ea6d13b59261e5c2",
    "signature": "0xe79993c5c358fa196a08565350cf73b4c0040290eb268785f63faabde7fb4a3f2e7c4f84f85fd2e075648a0e2ffd06092471f7eb4b8d6a5aa26fbe02cd4808f71b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}