{
  "manageEntity": {
    "action": "Update",
    "entityId": "288707748",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x61212dfb46c89009ee9a4bd849210a198a8981b91e16dc5c0c0d9f4a67c4dda2",
    "signature": "0x61a0933a3116bb6576337b0984cb8a4be006b6fa68356eeb994decd080044285630b82e3767e88f04368f460c1ca8bdc218e34b186157a552cdf52a16d4e8a361c",
    "signer": "0x262A4EeAc7fAD5a7F8E121A7f63cD0B7380A7D64",
    "userId": "288707748"
  }
}