{
  "manageEntity": {
    "action": "Update",
    "entityId": "660325685",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20f3fe274bccb1861830a4ec6172ab5a068649bce1556035c98cc853f90cc6f4",
    "signature": "0x8a4c0107b4c98f842d1ee369053f6fa279512027211e22bbd75efd1d5574202426f3139e63a2f96d51ba47e86105a772fc65c35ce8b132506ac92246427fdc3d1c",
    "signer": "0xDe08f20e5640D32C13d3814d25D85c6d460bd522",
    "userId": "660325685"
  }
}