{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "579726392",
    "entityType": "User",
    "nonce": "0x9f634ffe73da9d9d49d91938020f36f3b72e459f3c285a0ca0a06ca837b6acef",
    "signature": "0x335425fab02bb5180f5425c76af113a19a3593ba0cd595976cf3ed240462881a167f3fdcc88d4d48f345508af234b1f5eb2dbec60efca4e4035085a7d34094eb1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}