{
  "manageEntity": {
    "action": "Update",
    "entityId": "461949730",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1979cd8e54c4379a6d32571746920823ff9efeed13e115f3b2f7a642481f259",
    "signature": "0xa16f927543d6d4021f7429c4ed0516e0f1bbc507db4b608c2257a27ee4e3b2db1ff96422681c0182ed7319368b19fd00b0191e87e537122b0470707ba88695421b",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}