{
  "manageEntity": {
    "action": "Update",
    "entityId": "405314550",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x86bc446855f7d6ee4b3f72fbb132dffcc8747df5b2cc7bed98825feaceca2c7a",
    "signature": "0xbc0162dcd4c1fc7e28e9ca84b45f1b9d0a09ee2bbaa0ebe11bfa6ddf4d92975578f0aa45091f7ae4f0499a4e1ee358f91aa30c74973645cf335a208d322e2eb21b",
    "signer": "0x163b9B0b80794FC27cb6C3f9225546C1eFC9aEf7",
    "userId": "405314550"
  }
}