{
  "manageEntity": {
    "action": "Update",
    "entityId": "725367154",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9814e3de981ca5f606ca48d69462c87495f8e56f33ac5edf3562be726fb5fd69",
    "signature": "0x5be04c1e418ebafd778dd1db895d4faa9edf3ac61a9a37a7cdb5c70d1b3d71077563ea75d28bcb098700565f5094bede787b0b9ab0280224ad691c0c32059dfd1b",
    "signer": "0xc7E3F976Cd464DD5ab7F6F621Bcb6CB940429D0e",
    "userId": "725367154"
  }
}