{
  "manageEntity": {
    "action": "Update",
    "entityId": "671407449",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x210b4b9394cc94ba9e76acbd66c96ae4dc890b3ddafc53254cd714fe88306261",
    "signature": "0xef69361459f77d766e9a1bb64dcea6e85f6fc57fcc37760666ee7d9d0c2acab935d9e2e4c75d30231b1528a9765f5d36c27631457e1a914ce947e8d2e5b2b1321c",
    "signer": "0x67462e82673772e8CA9F82dDFb0019F5b07866f1",
    "userId": "671407449"
  }
}