{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328108",
    "entityType": "User",
    "nonce": "0x4d0ddecb08f45093fc34a9e32e27add93c6e4eace4811b0de2d352b412b57a72",
    "signature": "0xdab81373121c9daace7f60740c869b4d56a6805da5e1a3b0e761b60adb4589a665b49d153ae8edc97ed1adcace9658a977d43983aede928853a124b842c081c41c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}