{
  "manageEntity": {
    "action": "Update",
    "entityId": "218692613",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1228cabd6f447e602aadef5ef569d9520b05dc1235d1647ef462256434375428",
    "signature": "0x69365bb38db7fd65826a5ae5ba6ecd5cc57685ac5cbca1522f3b19466f83f39c31c9d2f81511184f92febcdc2f911d5620b5e5eed270b90c64dc146110eac95c1b",
    "signer": "0x6CDDC7B674Dd0fbE8fB2850B79b97aA2A37Aa071",
    "userId": "218692613"
  }
}