{
  "manageEntity": {
    "action": "Update",
    "entityId": "66921139",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x122a23a9afa355cf7562671f08a37510a4346e6864fdfdda2c27bafbd70f29ec",
    "signature": "0xdb0800f8008bb7d09f38954d65eb0eec67c57d6749611bbd645712a0c90d982b30c52d778297f937aecfa9505e4f02fac68d58dad7e334376225be32fed5d66c1b",
    "signer": "0x363801E3FA842957f7b59D108F8Cf2A0F0989Bc1",
    "userId": "66921139"
  }
}