{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x409077267c8ac009cfc31d8fa6a48eeebf6cc83f0a1b902f3caafb46c81367c8",
    "signature": "0x25dd51f4c7570b0477e41ba3b23303a6b65e245bb715c0006fb0f2f1a94656b449f0bfe08244a550a7eb8dddde52d884de92cfb8d57faf041e0c13d85cb1637e1c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}