{
  "manageEntity": {
    "action": "Update",
    "entityId": "325554867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5w334sdcsz7lbaeyw3uwqzqrnvkufjvlrvv233auuafwliigmawa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918542499},{\"type\":\"playlist\",\"playlist_id\":1723351475},{\"type\":\"playlist\",\"playlist_id\":828372839}]}}}",
    "nonce": "0x9feb7e838273c12998223f1b71263da010eac79215d3f7d6f110e49a2c6d4ef7",
    "signature": "0x1f2595149fba0212488b955acbc844d1623c24efcb758effabd8ed06ece3a8ae2e5d1fa44cfe6073e08abc9ba44a9cef320afd37681e55b89dc6efce4e9247861b",
    "signer": "0x4b402dCD6745d20b1A6e12626A6E2b97c8652E37",
    "userId": "325554867"
  }
}