{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "950478625",
    "entityType": "User",
    "nonce": "0xae42326d87bbbddbc4d7bf8086ebd95cd06c86eb24b22a1d893945d717d063e7",
    "signature": "0xc8ff64400d9643107603b47332174b626a7003fdfd09063e2d9d8b0d613fb5cd6741d93cc146f315995a672c69299d18dd215f25c6766b6c3c590fdc605851081c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}