{
  "manageEntity": {
    "action": "Update",
    "entityId": "519084439",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4fc46f9c400168adc7320566a9df0fbc86b921d1fca60b5c71c904cad232677f",
    "signature": "0x9ba77aae45c81f3db8739ec40fd624c8d85600068289ff8e7b64a0b5fd0020b70d77078702322873b3969ae8c941cc58eb547150099ecdf00a061d5df4ec77e51b",
    "signer": "0x7EEA4019E9dB95f979519D331ddC1a98E28D24AA",
    "userId": "519084439"
  }
}