{
  "manageEntity": {
    "action": "Update",
    "entityId": "560357460",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x08d9072d5e9a942ca89bd9aaf28527fb92d1c9e5fc0d15953565d87714dfcc3f",
    "signature": "0x05dfc2ff7076e0b101453975f945a24c3744ff7bc8b6148f155ee6cc8a1440cb3704e24dd39726921ae641d7f7be47dfcc5b8c14be819c775e32fba09a4fafb31b",
    "signer": "0x3c84662711809b9f6908C0dD579231Ab57151aB5",
    "userId": "560357460"
  }
}