{
  "manageEntity": {
    "action": "Update",
    "entityId": "477865186",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44f390a74b00c7950d4ceca9a1507f5456523fb28d725df942d8ab2cfd8314d6",
    "signature": "0x40f3e3b13c94e5617dcbd52d11128d1af52b9d049bf86ae8ad4d65cc4212c7b5346128aad3e31792de179ac832382a7fef242c4f801dde781de9c6c8805c93b31c",
    "signer": "0x6494E34328fdf16D4d991c70AEEf7B288436b4CC",
    "userId": "477865186"
  }
}