{
  "manageEntity": {
    "action": "Update",
    "entityId": "599834673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xff7d87cc1b63f83c680a40e13c7214bc4e98833142d72bb4e35c00a445f18b5c",
    "signature": "0xe63689728102f4528d821d838bb4ff7f9ba41694cf4c58f46e82fd05f9da30df0cd931de19cac30985fd27667fece2afe50ed71f648979add490878f0a4dd1d41b",
    "signer": "0xc5feD1872BC05Ec03aF299E6A4B8B81D9d531925",
    "userId": "599834673"
  }
}