{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x684d7cb2445f751bfcffe4e213528a3a64d56e3763650b3e5c1e4110d9dde24d",
    "signature": "0xb7d6ceef4c04a4ba296b44adb272baf2324fd98b8d608a70c10a9d35101f650c6bd710593a95b6aef9bfe3659cbfac9201591bdab0735aeaceefbc93c567aaf01c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}