{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334721",
    "entityType": "User",
    "nonce": "0x5ea056c7244125130b2f22b21f7e6f9d769c122da075bc1b42998ec4919497b4",
    "signature": "0x634a98ee53ab3d1ec05e50f5307029284f69108356f391bbe5476f4bb68589c413759e1af84242200e0eb7336a810a9041f161d08dfe06b56124e75f7313c5561c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}