{
  "manageEntity": {
    "action": "Update",
    "entityId": "479039338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x066829906b27f5cac209562b14aacb08b16fa5126187d29f0ef9c038ac67a6a8",
    "signature": "0x8de38e2ef7bd90783cc8d81ec29e9c00b8374e8532b60dad716f32cb6cb0385a25714343b5cd1abeb3f99f89125064441ad2ae8a2f5ad1614c0371832740ca641b",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}