{
  "manageEntity": {
    "action": "Update",
    "entityId": "899109893",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8be32a8318b6acc57c129b10cbf41172356cbc7384069c0c4f8fe45a6ed173da",
    "signature": "0xe7032eaec062334d9f1f6f8546ac8b5253a69de915630e8a0ce21eff7836f8487081d2f0d03573f22c42b32ebb6330dc3ed8358bc10f20b36a7acb9bd13fb6e91c",
    "signer": "0x6B82c3a916F7Bd387ECc8EA9070fb09Ddea3A590",
    "userId": "899109893"
  }
}