{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x298c4685726bc036a56778e82d183d020af2e85e44256f088695cdfb4d53e012",
    "signature": "0x95568e758f5aa77ec3538d6af9ac2f1e14385a3559a0a6b972dbdcd355fbe8834c8e44cf52a1d521fde8bef19a4338bc14cda10f13b6aa1d0727aa2c0b31f63f1c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}