{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbbb87c6a9c807476034e663ac307c34a446ef082d8401363190f294b6e587e19",
    "signature": "0x1f16ede61deb19c13bd5ff6a4222601d558386eef9a8401b5593f05f43ba21e46e65615e227a9c1f45c94fb728272793f226c2c8b3eaf6564bf1232fca6c04d81b",
    "signer": "0xB14f44D4e9042b2764CaE7b7A6592EbD2c01573F",
    "userId": "982780238"
  }
}