{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x88aaff04b10a4f5f207c350333bf14edbbf86711a7886981889e26ff3b49ef9f",
    "signature": "0x48c201ed61ee3ae022c76bd42c06b051564c87c3922b644a020832ad8fc9a3906c79c7de5070b7cb73fa91885af3e61d9da9b600f0ac8108b009f1d0ded15f371c",
    "signer": "0xf0F491bE628c3A5BF3904d1Ae68bc59234407951",
    "userId": "560417026"
  }
}