{
  "manageEntity": {
    "action": "Update",
    "entityId": "942998397",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8519efd46c21b06e83c2c08b203b53618f59124cc2dca4fd3de9abaa74b31e6e",
    "signature": "0xc9b9cfd646005c34af17f772bb8b11ccb38ab2d0c1b1bc56acc645df0f98c5181dcdd67b75dfd67cbc08d7aaa7307b3d870fe9ec200e4b415a2627c66c6ec7671c",
    "signer": "0x157bA741aDDB5162C2E1E91761E3Acbe4Fa13078",
    "userId": "942998397"
  }
}