{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1353d0d9fd2db2451f26779e723972478d3bf1be4b3b61f48d1677c71985c6f6",
    "signature": "0xc470c63d08cd307ae29a44087308472d29f1d81894963db6b6977c0d2db4bcd27b0099b8ae2902e159e70f59ee89c741a6ccda958ad810b90dcdb1056ea85c5d1b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}