{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139",
    "entityType": "User",
    "nonce": "0xca9c947b576d9764abd377d75de4ba8d343f2c09d8fa503744accd1ccc27b432",
    "signature": "0x506c0e686abc0d619779fb2560e683323e7acb356ba55b1d4b409327bd4992cb13e566d3ed4ae08307826de743e1bb229b700f40645a00f4d4a7cbf615fe57ee1c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}