{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xe4bb13bfaed4e2def9cde60ebb42fa78cd106b9a308930b70a3f1428e8866ec2",
    "signature": "0xcddba6eef31e38978a9efd7e332e24647e59b69a0aa97db9379ff3d1fc32919c20ec6f5fb2b5adee41366259425fb2e202bb9628d51026048d03643c13f1e1561b",
    "signer": "0xc8b59C26109BC380ABC47eBad3DF1FB7d6aBf13C",
    "userId": "37821039"
  }
}