{
  "manageEntity": {
    "action": "Update",
    "entityId": "446684277",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1da85ae569a88d20b1c5338d26e41ba5b032b1a191b1d9ab2e3fbb01819fe36",
    "signature": "0x9aae820bf7d229f3212c152fda274456f8e45f2083e80054640ee14282b44b9f3503abce07c60dc2e02ff18a4d098e0568109915ed7588a11d5122ebd850f3f31b",
    "signer": "0x37078959e8708e75303c5386562E052FCE3c1B1C",
    "userId": "446684277"
  }
}