{
  "manageEntity": {
    "action": "Update",
    "entityId": "359420119",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazwcxn2n4bhwmehtggch6om5zjqyws7pid4mrtfxmfaicxssqi2cq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1080519520},{\"type\":\"playlist\",\"playlist_id\":1854260536},{\"type\":\"playlist\",\"playlist_id\":1307010938}]}}}",
    "nonce": "0x0aef92012b8cca52885eb192c05ec9dc2cb8300c5e48ae3022da9e95fd0f3d75",
    "signature": "0xb4fc8bb474e85dc295d27f6ca1e88c9f4a768d629c0c664e5761a095f139541429bcf538d4d4ce6d336735d8c32b641869828fd5774850be9d85847742bf3b451b",
    "signer": "0x751A78a20c2b977B0A20DA2301fAfe5799C77D0b",
    "userId": "359420119"
  }
}