{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0x3f473e6f8b2c9f8273733e1331348dec0ef7435d16587a180889928ff248978d",
    "signature": "0xd74d63ccd39b0ebf4a715ae967182d5720947d189aba0798c56ca899fdcb3a2f5d550fd25eb768d7d60b5c811fa1638e53d62ba203864b0edde53b64f1db6e381b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}