{
  "manageEntity": {
    "action": "Update",
    "entityId": "465683681",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x373c5c0829b4acaff0d58757dc16aaf0dcc882f4a24e366e09e0153849605916",
    "signature": "0x47aaee8a542e3b70426e574d0eac0a02889f394e1e120d0dba332dd5d80f702b4db1f074934172c6879d4e5c9b7aafac43cfbd2d3dbe340e11bc763e9146a9511c",
    "signer": "0x3684616082d9788c06938910884356b3351cD0f9",
    "userId": "465683681"
  }
}