{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "718135480",
    "entityType": "User",
    "nonce": "0xeb448b954aa58d92de0baf712a1407e4a54cc51b2aca2fc34c63b6f3940c78b6",
    "signature": "0x3216e306bffc6b8c64b2156553fe41c33b9c7ddaa23ece1ff590544670665d576179b0adde693eefea4d7a85e3a626d5c957bf37ea0fc826c901bdeaa9933fbd1c",
    "signer": "0x1F5b327b06F23985a2eB7AcDEE087c4CE3F79860",
    "userId": "51270411"
  }
}