{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xc08d69b3bbeca33aa6b82f5fbe618743c5c1f338119ffe8b911021a759ab4e22",
    "signature": "0x5d768f98eab94e96abeda23dbd4b0ca88a53a13839f58814d89138361c782f4543aa55c38152608769e0ddd7bdfd1be397ff7eb83ea15ab0ac8f09e57b97cd781c",
    "signer": "0x87db7DB210Bc673A8cd93811B666e7527f0Cc154",
    "userId": "711686853"
  }
}