{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa3a387dc551e8144ccd77168010580000bca7fbd76449470e39fa17afa479cd7",
    "signature": "0xbc3f5a9dad102b3bdb0b0725810ddb039960084371d4b800066fadb6d28ca2dc317b7be9e4cbbb2632fc7728b8c3904cface57eca59c3290a7a07ac437da7b621b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}