{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x54ee4357d3372101d045e197b3e8b2e5fdf1ea3413b68dda3e29a70e3acb80d0",
    "signature": "0x4eb616d4bc157d76c303f118c3b951995d966d1594afe2f78dcd279c2eec0d59627d0565497a82dba40a10c88ca7d965e4f75f899e6259a1a1aa7ab0d97140251c",
    "signer": "0xD69A9FCA530FC41BAa46603d326C178685228ad5",
    "userId": "328761195"
  }
}