{
  "manageEntity": {
    "action": "Update",
    "entityId": "256987263",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x58e00ab62dd668a13e3285940a162a36ba0219cdd652a003c2bd927d8e12c0ba",
    "signature": "0xcf880f3bb04edee2400c3462519090374122257a4f2f3ca0d4028976cb4597fd60d50d9655f8ccc7883a7e0ea894ee6b7d6105e9121ccb5b5f155b0a45eeb3bf1b",
    "signer": "0x44f05aF7A6aB16944cA066aC4A1Cced897279fb6",
    "userId": "256987263"
  }
}