{
  "manageEntity": {
    "action": "Update",
    "entityId": "726314312",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5zpztjme3ozzti24oxu5m7ecwcukpwzbkte4gisk6ewrm6xkncca\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1607942474},{\"type\":\"playlist\",\"playlist_id\":1110658470},{\"type\":\"playlist\",\"playlist_id\":330864129}]}}}",
    "nonce": "0x64ae23aed19df15cb8222918c12330cdc22c25cab17617e645c86a4fadc375d3",
    "signature": "0x061587c4ae2a2f990df00930228299b37507e26abc2984a82d42925f68d5c2244e575025b0df64b83e43d78e44a70461977c02d895827cbc2bb5ed51ed3bff351b",
    "signer": "0x10cB9Ce4F77e218CD9Aa08f7571669CEAE89842F",
    "userId": "726314312"
  }
}