{
  "manageEntity": {
    "action": "Update",
    "entityId": "439116984",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9bd5e7f9eeb63705a16add52803cdb5e90a116efd9168359f0cdeea3b9f93b27",
    "signature": "0xad6b65230bc628784d2e367714fbfd6138779d00d3acb5a93bf7855e0f4228cb368077ded5ec071d7e2f9fc4502e0a449d2756f04e593a417e0eae8779900c971c",
    "signer": "0x713F2e5B0EB36E8f4406d30664f8b9fA676795d1",
    "userId": "439116984"
  }
}