{
  "manageEntity": {
    "action": "Update",
    "entityId": "461837593",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4052ac7f0fe85f61cc2418292e5d229a169626affe0ab340c42144959c92e635",
    "signature": "0x353eb836dc3e511d9c3500a11d01e6babc4789aa974d166a8af539ecdbf15a146becf0a09e26fed96d19258737c1308264c27690d0f535340420af6d06bc51271c",
    "signer": "0x735E924DE10642B12dCde634fE11C4eb41d60B3b",
    "userId": "461837593"
  }
}