{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25593afef0671d52b267b0925d1ea6ac04d3e74d6c765402103106f8f31026d2",
    "signature": "0x9e335295cf92ccf0bc1bc3d1641ec6147952202ac3019eb4647522a3c459699e0217ce62130e69df7afe225844429c80a2f39da5ea6ec6d98d80e54da8be5cdb1c",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}