{
  "manageEntity": {
    "action": "Update",
    "entityId": "527791598",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2c138e8d440d1f5a52f5a081d9dc3cfde90ad8910ea54e09c7c7a9f8372abfa0",
    "signature": "0xc5d89ed8e361922d14cd030d8f957d973703368eb73011d9da4f03a4c5ddddc142fd85729a1a63b6920f139fed620726418b149805cccf9f8906d2a4f869c77b1c",
    "signer": "0x9F3Bf79c6fEa03d18d5be4674830b152D12Bd7Ff",
    "userId": "527791598"
  }
}