{
  "manageEntity": {
    "action": "Update",
    "entityId": "937179560",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4c3d734564cae4ee86d342c6be17a63553b2df37ef8976ea56c6080a0bf5510d",
    "signature": "0x2b1f2bc70455630a7ad74ec179f102aaa2e4b00e2c77c3b0eccb39b7c60f03111cfc367d138bc64e85d2263c65b979d951c85be1d5bed291a1b0bad02c35cddc1b",
    "signer": "0xBdFfd8244e7bD07f7583E75F3763826F4C5C18a4",
    "userId": "937179560"
  }
}