{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159460377",
    "entityType": "User",
    "nonce": "0x86c1a02b855d3993e9c20fe1cd78956319b204a642d1be11b5fe6fafcd775c80",
    "signature": "0x3b02501d19b949a7c63c3449f640588c93747ecfa1a833ad20b9098170d7b9fb62cb6d5739ccd59c037083dc1cdb21dc84c40eb985537949950eb8ed1e64e1061c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}