{
  "manageEntity": {
    "action": "Update",
    "entityId": "292433028",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20e8504ab0ef324dd35fbde253f37837eceb3a2fc7d639b7d95b3034e8055e8f",
    "signature": "0x314eaf9b88ed6a12e3a20b67228598982360510ae4e6ccb507f2ff1c5aab6cf763059a15c138d6cd4d2dfc8949016063f6a9e496ece250ffa8c321cba0901eae1b",
    "signer": "0x4271322EC7204add6CDDdcb502a46efcc31ec460",
    "userId": "292433028"
  }
}