{
  "manageEntity": {
    "action": "Update",
    "entityId": "799571887",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2a4003c0eb34a8d2e23cf67bc6b3f666dca8d05f0a9b62d9252e46152a3a34c9",
    "signature": "0x237d59218ea18dc5f514cc02486126fe43ecc1a007876b29761dceb765eeb0901ffe46f11e6f7229ff295a82f59bb4b9414943126bc6ef974dfec480023da4731c",
    "signer": "0x75ACCD4160aaada206b4dCfA68E88187C9ba9A0b",
    "userId": "799571887"
  }
}