{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307811",
    "entityType": "User",
    "nonce": "0x40f25712228a93ddc5e8f2fe99d3e2867db65bd6cb24ff52fcf9a36962c5a217",
    "signature": "0x8152d341f4eabac2a41477d7c8e6231f7e6a7fa54f57142eeee56ab41e6923814f4079161b6bd6433c7d0808c1aca7feb48f21af3a35748c49282ecf99a2901a1b",
    "signer": "0xaa3bcf8712A3f5a178c83edE5e3DA745C257458e",
    "userId": "976266161"
  }
}