{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "402172867",
    "entityType": "User",
    "nonce": "0xb6f7f3f8572d2ac4de257caa2f52bebe5a83c96ada95cd993539a22e204f30dc",
    "signature": "0x08fed18bb9c32c47f684282d1e436f29fcc4f44b9f765f3e60775e8e47d473c471f39d52173e9635f1a1aa8f3ac2475adc8f8071b310d82a05c2db9d944828741b",
    "signer": "0xdD82be9126FB72E07c8f011C7AD5c9e6C598D44D",
    "userId": "845409072"
  }
}