{
  "manageEntity": {
    "action": "Update",
    "entityId": "739153526",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7eaea6361bcdba18ebab31f3c885ea3e869262bd4c7b2ac4dbc906c45c2328b4",
    "signature": "0xb94aa0c8f6d2215b6e6fdb79bfe2651747370f83ca9d4961748f8991e7983f3c405a66123d60f219221d84ba454b75b670539c549f513bbbdd4f89e34821264b1c",
    "signer": "0x9De2A5D519F8A609E7f870701a99029A70a5A1Ea",
    "userId": "739153526"
  }
}