{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xc59860f768335a35581f1cb131982879b5894547e4edf0eacfada5d74da4758a",
    "signature": "0x91792995c7098d77fc6f8ae3326e3dea606e19114ce21f7c72cdf393f1e9c1f556599c0eea3d90700845c47849e321f5143cb27b5f596f1c42e1f460aebd041a1c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}