{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "826451106",
    "entityType": "User",
    "nonce": "0xefa38a37209cd09f729c3eb2ff5013d39d29a29f77eb5e8c6cc031ae3eaa4487",
    "signature": "0x2a0ba397baf0831955f6fdd3773cb18f386ac9ad05047d49233fc40ede5f38a615145223e3ff13bc6427115b6ce7d0dcc3aae9f36cff8c508e4d63f5fcad50c91b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}