{
  "manageEntity": {
    "action": "Update",
    "entityId": "873346349",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x62d02b3261bf2b42648c9f3639d520b467477607b9683b576f5a9a04318783cc",
    "signature": "0xc91939b1ac28599f73e951f685b5de184045d23616132c3c4123e82941d8c9dc31dbe66f54c660241c87f9f896166fc2c19811ee3b58cc94ef5bcc7484f595b01b",
    "signer": "0x33892C91AF7a2aA34ff26f688557426a58D8c18a",
    "userId": "873346349"
  }
}