{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb7984c346bda379718ab22999f658898a9cb87bb96dd4d9a7971e6b99da1f563",
    "signature": "0x397b42d87d18f7e494444a8030753e4f7520f8f0c291f0cc45e1cbadf30cd2323fbf98761adfcc35c83fb76ac0013151aa85a532a8b8c2608946ecc193c30d361b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}