{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62800",
    "entityType": "User",
    "nonce": "0x78cf2ec543eb5042ddc6b858ff715edf9b11d2f157c907d00e1a2a25011bc8eb",
    "signature": "0xc2ee37c501e3e2ff89b2b75eac610a6dd54b3e19bd1b8031c1436b97e97460c54ff9529ee7f7fb557d0d03be32313587456048782fc055458a1334753aef54221b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}