{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87482b4be362c24f4b8cc2f3d503367149d25e9ee5aadb882d20f1ecbd7597ed",
    "signature": "0x8d5826dcf7c4dfa0386589b0782e8dc83bebbe96336cc9603b7ca7a0faa87e736aa24e82fac4f41a7c78c0f5805ebde291c8fa25eed282ab2b364490a5730bb11b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}