{
  "manageEntity": {
    "action": "Update",
    "entityId": "504270527",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc802f9005d5070e02291e5266448e98eb67d51b589aee99ac2bf80a7470c247e",
    "signature": "0xe11e6d7443752b7252c212c97614422b04aeb81f2cbb913a91586457710a44d935e5e911b8ec5952cddced412d43e6191c5d88035740c5b97312061e963ec2a51c",
    "signer": "0xdF7b97B84dE9f20D3209339266363cb001F2902f",
    "userId": "504270527"
  }
}