{
  "manageEntity": {
    "action": "Update",
    "entityId": "63219485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc04af0b8986fc6aeee9d778f22b4507a3255f32a1fe6290a9034ebb67dbc0783",
    "signature": "0xdbb31d3aafab5050722df7377edc2fd116f83381cdacee6c1bf973031d78585645355aa9503c936960fa03c366d28d101367d4a1c2ce0b7765a6f34a24c7d2f81c",
    "signer": "0x71B8B1Ada9007B065F72f30543e6E310d061605D",
    "userId": "63219485"
  }
}