{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57319",
    "entityType": "User",
    "nonce": "0x7313542b80721491b4147c868021f31769c91addaf1a5a009bec257806254227",
    "signature": "0x75de546ee597e09c3d9bd2e3e73fef36479e9742e6908e888d87777d83a93a051755d71eb412a9b9af1466f8490ec2b214fe80870d7e34bc2325cd339c90f0931b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}