{
  "manageEntity": {
    "action": "Update",
    "entityId": "844682015",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x18f96adb01407ffac57aebf72ef17ca526caf12a0672ba0460e254f1058565b5",
    "signature": "0xc344e423ca890df95ad3f7c48cb9d68565714e36120355957ea409a42d3c851a22fc70d30893d1d34f0f2a4fe0305fdaef844c3f904b725c14009a0c07ed53521b",
    "signer": "0x0daCbB079253251535db288304bfE79Db047A514",
    "userId": "844682015"
  }
}