{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x788b756356141b91c75b52695d3dd1948657e00b2de62a077483b18037ac6463",
    "signature": "0xf19911e1283fcacaf4b9a84e75b5ae08d8277d2498728f3cf0ca031cba8e0aae06837a13a457a76b855a7d98bb3323e20461ec64f239141ec01f04a8549ea4d01c",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}