{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384526",
    "entityType": "User",
    "nonce": "0xb1a044f713e4b2fd0cd915ecf3b6915ab16e726b0f8555d1f341eb8d784760c6",
    "signature": "0x09524242b0d3600dd3365980b4f474b3b84a5baf886084f7f9f8450dc12726744019b841c90abd054ec94887b5265c391630e41c46739fe64c67781bea893c161b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}