{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74705",
    "entityType": "User",
    "nonce": "0x22b2c64b3f5938f1400bea40c45ece2adef72c208b9b2f00ffe84cf34c832e8b",
    "signature": "0xf570d26d653552066bc7ea171c64ef6f7edd3baa9600b2d36fd98e03adf69e182f70ca63c76fd1c4a52f9b1ad841bf820106f88d69942aef5ac7bb0ee37aa9971b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}