{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakkq3tkbtql3xik5lp33kext6z43r7ekmi7nibfn54k24p6p7uzgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1126518777},{\"type\":\"playlist\",\"playlist_id\":118958},{\"type\":\"playlist\",\"playlist_id\":4357}]}}}",
    "nonce": "0x6af599f289febfd07214f3ad4a5eec4ef1ce509f025241f6bd76d01aa33cfec0",
    "signature": "0x7167b3b615a436b000125099d40977c534c1aec650299b8cb1b88066c0241caa03cc507df321dd36027b720bd7c3cb77051742bb7f02422afec1969c6c5f81551b",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}