{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x4429251fad7c55fc753f3025434a2c63c8eec80e47a6f54a00c9d4e29113b6bc",
    "signature": "0x16ce053de5a844bcf6ee4244fd19785fc6b1619e221d0df6a375d7221208e1aa23a177ca5498f48399a8b32240127272ff8532c385e018bc780890cfed223b241b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}