{
  "manageEntity": {
    "action": "Update",
    "entityId": "528257612",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1f7bf12ca0b45ad3ef5c084e67a183bdf479c1edb426766530b38d21030ee26",
    "signature": "0x26712aa51f0ee60149033ead38b6b9473c6ec15c87ff21657411bf3c4fd9ea6920a44571eab9647ecf1ebecddcc5754cb57512b5e625d76a4f829c59b73441ad1c",
    "signer": "0x2D155bAe157870c51e1AAf91626dFcF9152866ce",
    "userId": "528257612"
  }
}