{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xdba21cb1ccd75629549dbff4968da5aa747d20467e8592e74ae820c3e7d1eba8",
    "signature": "0x9adc4c7433223ed4e91fa5cafef4a78b30f0dfdb2d7db01b2cb034a269df0120274dae6345725ea121be95cc27afbbfb6942ab59c342048744455ba18738ac2f1b",
    "signer": "0x16eC1CF4f324EACfAa9D3F0D2add22A0e775fb3f",
    "userId": "392894187"
  }
}