{
  "manageEntity": {
    "action": "Update",
    "entityId": "715289203",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x97f2083d4f4691fc8e260b74cce78bcc732b2ea1a716903fe856557be7c274cd",
    "signature": "0xdf71e184c71a780bb8b43d5a50e5dc51e9505daa233a8ebd47c018dbf49622774f30eeadc45fc82415a04bcb2dea2762cd6f1a9d5cadba337474bee445f5bc351b",
    "signer": "0x81D02EcDcd664B799838B198FBCB5DCFF80De053",
    "userId": "715289203"
  }
}