{
  "manageEntity": {
    "action": "Update",
    "entityId": "355794093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b45d141742467af42effb6a792817b3ac85d25f1841a7bfe764b9e76b707c77",
    "signature": "0x1f722ad73f17eccf4fb45aad4767d5d3e7bab70fd8fda55f492c046effc7a0770475a0b00a0ab2d9a69a8939cc1f4842ec7151fe0c891d87884ab6cb9e1656111b",
    "signer": "0x23Ae8E2241d8d34cC28c882B6aF853c0bB4e384D",
    "userId": "355794093"
  }
}