{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1714556",
    "entityType": "User",
    "nonce": "0xf365a2f55e800fa5f1a3853a9391a905ef7ced18a34e6ab1caf174f95b984cc0",
    "signature": "0x5efd28b554e2f00b1b9f3defb3155d804cf690c575be5c4b830e70a50acff61510d99abbc68c9f7421ef31e715de0e5a299df9add284c001243d5d36b66e00b61b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}