{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0xbbafe844e5e8376c465e8c9f360f3e8fef3cf34d1449fde6b9c6ee407a0f983d",
    "signature": "0xb3a0c5c0df7213d84b531dc0095c060d31203f45b381498802ed3f6ee952a3f52ad6898d76810ca34cc1125b2107d9ead44f67b4a1fc7932a2280a1f17c469771c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}