{
  "manageEntity": {
    "action": "Update",
    "entityId": "636553111",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb90dc144cd6cff50c36061bc4190fc36a95a95c711d38ee80284f3f605bd535",
    "signature": "0x4ce3686745375add7ae575641a6069b316de1222c47837ec01f68f1fdc3ad177404d24fb36b6106f1c904d7f9b9e7dc84258ed2345d7c18330e098cfdddddcc51b",
    "signer": "0x140f7DD4B61B1fdeb532936A8a73C5cFaD2c3c4B",
    "userId": "636553111"
  }
}