{
  "manageEntity": {
    "action": "Update",
    "entityId": "755330176",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0c0e7b1d1176694141328943c670e95bc6d73402b1b58f411cea2f38ab6d3062",
    "signature": "0x2fa2e86cec971cf8e718cc3a7420737a8c46bbcc63839c6d0c5fcfdf17c5f6bf452d0970180f013ceb55a1179391290cd09326c2b022c249a29e463db370095c1b",
    "signer": "0xD98eADAa29791533E4074Ec7A4d2eE7Efa0731d1",
    "userId": "755330176"
  }
}