{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139944657",
    "entityType": "User",
    "nonce": "0x974beaf3549bca150d8e9d8d0ff6fc68adfcc83c12d650b354d3351b640117a3",
    "signature": "0xf12751363d0ed7db6fff890cb183c05cdbbc0fd418d4ae1295cc0545f6b40d8150de2f947365fda09b79b718e911688135fdfdc379e4986668a8992afce812c91c",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}