{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228434",
    "entityType": "User",
    "nonce": "0x7fba5bc56b555b4e2eb1853bd2a3494d179e68b960db4b9fdf8ae98e1bca09d2",
    "signature": "0xb539cc7a35bb6fdd517d03a78b753bd4362c6e5e1f3f5c15eb21e98d0125b25c50c6d9b2907fadb28981eceb00d89f831c37e5a2622c7181012bdedcbd8c7b671c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}