{
  "manageEntity": {
    "action": "Update",
    "entityId": "983511459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb77a503abe64df9efbf10b891a74a7a6a585c2e64addfbb6f2c9555c76a2d5a8",
    "signature": "0xec70e38ba4892c5677f0a1f70488d67e7ee3ed59aa17200768fcec2b5c7bde5a2530527eb2743a3ff007b5742ccba1211766b8b4bf28a16ecedd182d6ea88c6d1c",
    "signer": "0x0A000A14FdAc2CC14003e0dfbf1c6171Ba2e8A18",
    "userId": "983511459"
  }
}