{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x7f54066f805527b383e2b1382f09c195f0cee85d93211e18bcbad1ad9158e9af",
    "signature": "0x4dc5f3350230cedcbb925cf004e7ef273b13b1ed9a90baea3075ad7096074ec529098fdf520fc3a36f8b0e09b57645258cffc6e1e84dbc6db3b04efead50b8bd1b",
    "signer": "0x661463553B156580E748121e1aCAE86219E6E996",
    "userId": "247699513"
  }
}