{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711757920",
    "entityType": "User",
    "nonce": "0xc9b992c4d41d4fa6f16c087080e12b85a44d75721b915d7467947bf5b28c702c",
    "signature": "0x40686a0a601ca96f01edfd224be6168d55ca277eec8d844136d56ac25c1433060f2ce05a292c0419c03feaeedb6d654df641e00853f9f598f0aaeb6cf91f0a7a1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}