{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0x6b53efab8d9757e21eead4db2076464afe877adc62687b2a88e57eed3fd72b9a",
    "signature": "0xd2f2700e6bb04e2940f0428ee50e4269731a78aefe3576914e34f5bec038f4b9426282a13dea2a41513c408fb4de59238ce749513d138aeded194585a19bbd951b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}