{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58d3a592aa393e29d78e3829bb57cb729ca6c62336b7420d4bb3e62fe3cf0b54",
    "signature": "0xf53ab99954a647dfc57c56f6dff596f873099d2981a9406451ef63812a271d9c5239e45260c975b80e1c234e7f20914f394f4365fbd279be643ff1759ed218ef1c",
    "signer": "0xf19F1fE26614a2184134C367B9Cab56C8Fc2c3f8",
    "userId": "152153675"
  }
}