{
  "manageEntity": {
    "action": "Update",
    "entityId": "495925470",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradnd7gh64u7gl6xnii2cyy6albgzchtj5yjgoynxvpnh57iyuvw3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":692725699}]}}}",
    "nonce": "0x19f1ca192fe6a6c7680faa2cd6e0b76587840dae53388667f1c89fc48b1a3596",
    "signature": "0x38ef89801a195a7a3e95566dfd82c3fe3e2acb793f1f119589a0b50daf3a79775bea430b417abe89a088d0309295c6527b4d293f8cb7511475efd8fe6db390981b",
    "signer": "0x91C1f0a26f0b26BE4EABeb19E371752f000924a4",
    "userId": "495925470"
  }
}