{
  "manageEntity": {
    "action": "Update",
    "entityId": "527219039",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x695839461fb8a79e90e41b049c046767ed200187171e68b18ec8788db667a3fb",
    "signature": "0xb8186bb7a3fad639fcc9c43a61cfbb0290e427e73bff55b90e0dae73d47a2a4a1e5f3d0644cfc7fb0a6d4dd6415df6e3d857b836978e458c1a169ba069488a611b",
    "signer": "0xA3A9C3571C6054DD35EDD94b9B2473dD839de8c4",
    "userId": "527219039"
  }
}