{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1495091",
    "entityType": "User",
    "nonce": "0xcd9afa3b8049bcad78659f832bff498bef192b8d9e3a247f131437645e77e51b",
    "signature": "0x15acbc5c08bfd9a9f2c8c50d8cbd39219eef08f7a1472d10913b73f1724eb34874a0cf565b640b8b52c7b80c8dea40fa15bd3e7347bc26cfb86760bf4248071e1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}