{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010398",
    "entityType": "User",
    "nonce": "0x3e9fa2181760a7d384cb828292ce672c6a28e088fd03c745a7c8c8f44636bb3d",
    "signature": "0x9dd5956df6f887b1cfe9a10a824b8fea9ca81ea2462726d562209fa6998c86256606d002edaeea9d6718d51a46641c067cb29af2523d0ec1b4b072bbc11e75991c",
    "signer": "0xE60c3C8C928753655cFDA3Bbd2a311Ab0557f298",
    "userId": "111540320"
  }
}