{
  "manageEntity": {
    "action": "Update",
    "entityId": "547001496",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xce0a6218d0bc00a088b47772234ece3418d82fe90b39199789f70cf2a285e452",
    "signature": "0x39adb62c17204addf666ff6e05540fdc4d09c3616901e7b1b2d343e3ac09f8e3764ba5057262c995b5914029f265040738c211f0463860fb13bad19401f934361c",
    "signer": "0xb19c54D1dB784f8b4B584C6BC4eE3C40a7C47439",
    "userId": "547001496"
  }
}