{
  "manageEntity": {
    "action": "Update",
    "entityId": "842575483",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabbx22ucttgm5mq5ooiuxp2bimc5dmud2galrge5cb4f3z2d5ycwq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1729429452},{\"type\":\"playlist\",\"playlist_id\":128899},{\"type\":\"playlist\",\"playlist_id\":1795117483}]}}}",
    "nonce": "0x238a8891fc62d2dd3386b036ec2c57f29d17186d0f677198664d71f213e9d1f5",
    "signature": "0x7f1db5c392ee5e5d7dc65691cce92fe63d9c7d70f35bdf37f8e3525f2ccaac6430a761d5b4e67a089b491ad72e08445c7b6bfac2fb2d7fe6fa01c88006cb05471c",
    "signer": "0xdBe895810b3F9F6Dc6073E427C17bF8C3e1DF6A5",
    "userId": "842575483"
  }
}