{
  "manageEntity": {
    "action": "Update",
    "entityId": "597766938",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5e7410665b75ffe3ca8240b18d049d0666e7c4e63fc584dd5f66b2d5087bd23",
    "signature": "0x1245407cadcd31d561056104cddd9d4b4702dc8819efcb7e4c0f404742601d1615e0246bdd0dd1384e1e00bd42783c84d4ad38dcbeedcc590c5ffc0a9d6597db1c",
    "signer": "0x6e2CEb8Cd4f0A669607De6c8686f7B2E15dEaed4",
    "userId": "597766938"
  }
}