{
  "manageEntity": {
    "action": "Update",
    "entityId": "179923362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8ae79f4afa7d5e04bf8b58d3a9e6f8df1d2c317a08a8980aed7a6d4c4fbf7bbe",
    "signature": "0x479606beb376662e6f0eaa23ed516374c84232807679c1a7ef4c347cef577c441061502089bfe4342a5e0e7af767f851e577bbed64d1a444ff8658bd8a9a4be21c",
    "signer": "0x43208F712e4C966c682c25Fde9F13346FE06522D",
    "userId": "179923362"
  }
}