{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196640",
    "entityType": "User",
    "nonce": "0x9c907cc7ba255ef31f89412880155acc87da495e31ca85a1eb3ccad15bd66d5b",
    "signature": "0x8df86ff495450214b6c5b9a1e5352faf6522dd5c29feff526cbcc93c8d1ea5382da1995705308c30ec5699d4f395aa34e7ba1ff153693b051b37b2acf6ae617e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}