{
  "manageEntity": {
    "action": "Update",
    "entityId": "457140696",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieravri447v2gt5ufi6b6rb5r2eiu3z4tch2dsv2cdoosmtxk5vyxcna\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1571941956}]}}}",
    "nonce": "0x534a1dc3361069a8103245834d47f1cffe46f13bdf17a7c633522a6714773789",
    "signature": "0x0cda8fa7bc0268e0f9e29214de14417d676e65b07b74d3dfb73f2e591e8cb6a1588f03a61c4a6bf33c1de0bf4b0adb50ab43066c041a117516b57c9e3c07f1291c",
    "signer": "0xee24f992a791b330c115904885f2727781B75F8e",
    "userId": "457140696"
  }
}