{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3261c8e40a74aff2022b5513783294f8581ee6eaf79925ec2bf77f5f14bbac2e",
    "signature": "0x9b5cef247671837e5b8ca3f105c988e6d55d7285b77b5c25019472414ea886431e6f63b5cfeebffdcc42fb617ba4138fb8fd5314f58b36b52969cdc108fdac2c1b",
    "signer": "0x0C88bb0Fe1585e94f57A7EE989BeF92B92cb501f",
    "userId": "561298785"
  }
}