{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x452d3835d60d2c38205db519bda278fea293571570510dd372cc4ab1954834e3",
    "signature": "0xc1a40e8e07b8338b9d931b71b5d4cd9f5b4acb3a2752a616f637e3976215dd445776622cc36bc44a831cb9c8f07afe1539f5d85a06b4e7a7a25dff75bf12a4e71b",
    "signer": "0x8a00C8AA0E527C89447B001f7dE52D1208cb42f8",
    "userId": "329595354"
  }
}