{
  "manageEntity": {
    "action": "Update",
    "entityId": "313045689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabeaxvupuqitz4wu675ovjzmrhyedr67rj6kwqgwdh33ofyntwbma\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":605796989},{\"type\":\"playlist\",\"playlist_id\":1305376618}]}}}",
    "nonce": "0x1c663a62027fd8247acbe3186ea20680ed6636cd0485dda25687584bd52e43ae",
    "signature": "0xb58e5faa1cd703ddc762444c986658522ad9dfa4aea44d9da0bf38fbdbb664535a848ed3119c39000266d4f891060b9b5a041bde907ae23d1c8430de307097061c",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}