{
  "manageEntity": {
    "action": "Update",
    "entityId": "310734073",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdfe291da3f00190392eef5fb3c2d512e843c9f369f7e22f519a3b1f4ae26efb1",
    "signature": "0xc190b88fe9cb9fda2bedb4c50300021751987365dfc14e620d35d5e28f8179fd53d520f44c77f857801723fb284da76eec65026cf6bbfe8ff7c1f6c069597f5f1c",
    "signer": "0x48f44A0C4cf179A7630e4BfF1E557Cc8279Fd63A",
    "userId": "310734073"
  }
}