{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133891",
    "entityType": "User",
    "nonce": "0xb8c961f30b07004c8d65c6bad6374d7876919f0e073989ddbcfefd524844ccf4",
    "signature": "0x775230dd0513749e89db0fd1856030fb5a970b620225c69b0488502e4b0f15ce6ed0fea454c16d9071014760b05188b25d9a44e5ed2ce1a61c9a038aba69d77a1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}