{
  "manageEntity": {
    "action": "Update",
    "entityId": "428941685",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratupsqnil7ogdalo7ev6zbqfrduahu5mejwi2fgyykvbiuzekz63q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1511054410},{\"type\":\"playlist\",\"playlist_id\":74170395},{\"type\":\"playlist\",\"playlist_id\":237607971},{\"type\":\"playlist\",\"playlist_id\":29911240},{\"type\":\"playlist\",\"playlist_id\":1939326417}]}}}",
    "nonce": "0x40e7d7778c2ac9e0e6e31d11fb74e48da8b813a75e39aadcede59835bcacf23a",
    "signature": "0xe179068641e708189e4ed73b182a393d70b8f9dff3e8c275f14a4e9950838d88778289f90c99851e64b483c97a4fa9cb7762c684887f5b83038ee9697c512bcb1c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}