{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xad10749b9f99223b72b94bea09379736a4d2ab37bbbd634a2cd9aba7a9886e57",
    "signature": "0xc33e5ab721b37ec4e4feefbf174d0a1f52a1e82d0ce8fd94d49dce1a5ec5090c29a79cbe2ad623d98cae0434dd5e65b4e561864661def4fb8dd29bd77484b9be1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}