{
  "manageEntity": {
    "action": "Update",
    "entityId": "272809645",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0eeb5053ac259842433e0868589b64f227fd400f53977630a1d4419e420270ba",
    "signature": "0xabe6b03b0bbec6f1d6d29c8b9ad88decbb3d26f1fa1a11d61805a7bed37ee93d3ab860fd431943fae484f26ed4014a966c7c217711c6568a4a012967a12e61721b",
    "signer": "0x519f59B3efef0Df45928E79086d979C0C4A40Fee",
    "userId": "272809645"
  }
}