{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "559677196",
    "entityType": "User",
    "nonce": "0x20e6e6faa632d45b62f87216890ef6ec5df241885ba863c29464660e078d07f2",
    "signature": "0xcaebb191ee860e1f442eb1bea6c048ccd22e18135c59dcdc0bfb0470ce2d9ca12a2c0941a3e3979cd2e8540e80efcab668c12fd8fe8f5de832d2f6366742d5471c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}