{
  "manageEntity": {
    "action": "Update",
    "entityId": "626061369",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc0739bbaab1dd75673a316198c7b41403b4c2b8ec67b95967f24ebc5d8d3da60",
    "signature": "0xd2d1d91be410cedee88d7b911526d1e439c19378b8d236ec6bd4f2b30f6b07dc78b6fa503aaa60d672ab4c1ac074871df741c2abfb1619d88de4b57c3b342bb01c",
    "signer": "0x37425f7890b0ECDAe041Ebb035741bf1694Fcde6",
    "userId": "626061369"
  }
}