{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77558184",
    "entityType": "User",
    "nonce": "0x96eb738811b627717c72dfee77a696f9355d838e2705b37ec70b1b8218a17341",
    "signature": "0x4a8835ea262f7dcf558035b6dabe84ee54a7b9ecee339c3d584320beb15f19c9575fba7d129aba0582fd9fd04f75b8b41857ef98f0c7892e722e3d7b927480e11b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}