{
  "manageEntity": {
    "action": "Update",
    "entityId": "60841394",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x54545ea99b7857201cda018d68e02d7f0bf58509172584bd5e3b7137f0b69880",
    "signature": "0xdc8d51117b4ab7737c71f1034b81b53b3c404e4c60afa5125c05d5716190ce3c11bc2315cdf1c934cb4afe07c9fa599d9d53b1c2784d67c8283a5de322bb77a81b",
    "signer": "0x3e31c0900E5b08014B60BF74284B04565C9844DB",
    "userId": "60841394"
  }
}