{
  "manageEntity": {
    "action": "Update",
    "entityId": "163718009",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqwss7euwus7vgggxoornoovz2gm27jaaaodi2ehb22xaerc4ghqa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":70090845},{\"type\":\"playlist\",\"playlist_id\":2145290385},{\"type\":\"playlist\",\"playlist_id\":894078048}]}}}",
    "nonce": "0x4ea5e315413efca5a46272b3b7e50d17a3bdcce0df4adeeabef3454ab55fde29",
    "signature": "0x24cda2eec83ab176a11636606337c8ce98b38cf2565134c904282e2de3f07a6829ab816a30458ff875148eb5603aa889a408cefa1bf1282b1d91b9a1cdff80f81c",
    "signer": "0x4B9F6393F7DB4995E29bc601eE2D8037Ec63a9D1",
    "userId": "163718009"
  }
}