{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357963324",
    "entityType": "User",
    "nonce": "0x2e58103c7b127b1d7410d4937c0464a39f2ca1e717102747b3abd569699b4516",
    "signature": "0x416cc80f9fa664f1056f2a6096dda9522934d2792f041f1ab17d76d498d903556dc543d48d18bbf90bf24eea4d9a64a5b1423c7d8a371e47282b3c3058bb70de1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}