{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593426310",
    "entityType": "User",
    "nonce": "0xc36e316bb1865446760cb2f95b0c2b089f9ce19671f8e08b6ae636df00d96f66",
    "signature": "0xbe928e9323c548d5b08bb1d4ab5e99010ddf43ebe143e314dd595ad0ef819e26622dd33125e205ea1446edc9bf764c38a5899ba7823ae589ae635d6bf8f591f71c",
    "signer": "0x99b5F46ae3978FB02A645f824e51700B327f1d6e",
    "userId": "97654"
  }
}