{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217405",
    "entityType": "User",
    "nonce": "0x8cd45fddbc157ff923ac29e7acaea699e0d2dc4105b689a60739627ef0a27031",
    "signature": "0x017c64b354b7817c982f60c0c74d3578ac5f8894791c51f8fe206e951449b0fe5e8886e6bd404ac36103958e4ff1cc2fb45dc02b56860929bf63c41a044bcbad1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}