{
  "manageEntity": {
    "action": "Update",
    "entityId": "981824750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxotdd3d5oi6swekzf4gr6c5lnikb2ly76l5r2tgtwarmida34t7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":112061281}]}}}",
    "nonce": "0xa553890c727915585fe64551e1199e78854c097dc60843225be5806ec489eb2a",
    "signature": "0xb8bb78ddfb82a8fe7be8a1bdaa3a598444b37a1625ead2566d8111f4e78a1f0b2da61af197efca0c5ef1558a3ab400acfd773b975c68f09efe664316b0b26d9d1b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}