{
  "manageEntity": {
    "action": "Update",
    "entityId": "54091821",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x49f320c23131b5a7e0231c0cf76fc56cf299df4be893477d7d6a44d6987111ff",
    "signature": "0x0f3cacdba2a82fc22f34e7a0e0543410e6fc69ed4321cf542693d29052868b3d668c0992f2ec4cc14d1a76f5b46ea02b4e907c779efb281df895d992a85acdb91c",
    "signer": "0x3F11C9FC3f1Da6207f51f99A3A3D5eE10A91C9Ee",
    "userId": "54091821"
  }
}