{
  "manageEntity": {
    "action": "Update",
    "entityId": "729752759",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe03dcd29927f189bfcfb0198d6b511f211e5c5677adb4a01045f59e1dab4a9d7",
    "signature": "0xa8e5a0965edd81f7eee400f4a5671bad960ec21190a055c9d202323627b3725c511125f3c30cd3634be4ccde7abc48bae723064e94d5d9322d0e0a5c5df75dfb1b",
    "signer": "0xb3e579316b5c2BD570788161B30688eDa11B16bC",
    "userId": "729752759"
  }
}