{
  "manageEntity": {
    "action": "Update",
    "entityId": "854821388",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xda63b41d411c530a14d3200f38abade2873f916e47dc0a89f58d87f087730490",
    "signature": "0x18a77e7becf60c2e5f308a2ad415544bd4df2f402b35f7bebc1f1158df5fcff4649d411d62d21a1cf17ba73f299a7a5e91e66c96338dbeac6edd41ca682299381b",
    "signer": "0x4655f3313c8218Ab2B7384fad47CEcd4FEB5f243",
    "userId": "854821388"
  }
}