{
  "manageEntity": {
    "action": "Update",
    "entityId": "951345783",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc85b8185613d9a1ea5b7b41cb97c32e55a4a99dc64cead9a8e060bdb17415c93",
    "signature": "0x18eb645ea6787882c359292265b9ae8e504756316ace9bac13ba286f3f7a228b0aa0c7ecc98a443b442dc92f895bbeccff7c69f62439a0e352d57c691c5ee0f11c",
    "signer": "0x62f9a1f68399638EDEEe6267cdf3B701099302aa",
    "userId": "951345783"
  }
}