{
  "manageEntity": {
    "action": "Update",
    "entityId": "942505233",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc7f114f2b8a71d273af9a4267706c04263b4ce244302ddc3173be3674a192b93",
    "signature": "0x270888a7ed85e79ddb4e04121e19d1adc8ef7ccaeb41e74777bfcc79a7daf7a530c666a654ddf69dbb4ceef30e1a3eb06ff5ac8f0538f13af82db798354051551c",
    "signer": "0x129FC581Bc6622313fB48ee15Aea977fcB3dcF2E",
    "userId": "942505233"
  }
}