{
  "manageEntity": {
    "action": "Update",
    "entityId": "208431511",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1902ef1d965c4a3f56ac65de939e3d7012dea6b4c7abb655697222acf1d863e",
    "signature": "0x745920322cdc11c80ae53f368a456a4c8304be197b617dae2cdc8f2a006beffb23142e7ead5fab4bbd8e48d5b4ba63f89739999ad1ded9e672e73949767f7b771b",
    "signer": "0xdf555AE1cDda83689Ca8307CbD9048AF27b89b69",
    "userId": "208431511"
  }
}