{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20d319650ce7c1711c79a82ebff3e37a63e5bd2f4bc1a4fff9693766f1600b52",
    "signature": "0xa70fec128fefcb5264a0800ba931f9d77bb877c03d740c98606b81169c8918066121feef3c6cb18a824b9dd2659da8adfaad5f0d3c836875db004c31b6a9515b1c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}