{
  "manageEntity": {
    "action": "Update",
    "entityId": "428941685",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xed672d02eb23fe7fc62c6a9f2007f98a3a1e9421ec7a65ddb2073d534ec823c5",
    "signature": "0x72b56816a823ada847fe4a2d334b43dd5d9de6b50650103784371806d3ae6e011fa722a5e2cfcf903126ae04f731c0370c3f1505fc629e5aaafbbcd85aaac9d71c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}