{
  "manageEntity": {
    "action": "Update",
    "entityId": "514794984",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x75e0f1d0aeb73cab761b3c0af58f5fe993b9450ca423929bf620c9e53445173b",
    "signature": "0x3064baaa50230e918873161eefb4418ed2ea2d3b9a043808ac4e6b983a4786be58e9ab0306296c414e4007e9f621e586f79b7e3220c0935d5e3dc6e171ec5ab81b",
    "signer": "0xcaAc28aeAb1d6A402463f9F4e096De71F8e8c319",
    "userId": "514794984"
  }
}