{
  "manageEntity": {
    "action": "Update",
    "entityId": "835577932",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc09f5c899c71f67d0645aba44aa0bb3b2bf0a8e5c8f1bb7ea95a429703ccd3f9",
    "signature": "0xb35db2e39e2f3f192dfefa73bf9a08286a8493fd9bf77f7a64a22d0c087f6a9167766f457aa3c7f699b8eca87658005a779fd0ca4e210b7896605b6ef17240681c",
    "signer": "0x1d2Cf0589BE039B18f265a88e571dcfBa06C047c",
    "userId": "835577932"
  }
}