{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296602",
    "entityType": "User",
    "nonce": "0x4882c4f7e4079460b855f8168a58495f8c33162621e040a23c23f92b44cba903",
    "signature": "0x0d6eb1fc969f5c6413be9a9480357c76d1836fba44608edd4d4aceccdc9d33312baaacce32fa2b32ac69446e9c0c75c9726dc440b5aceee5dc60963b03b76a471b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}