{
  "manageEntity": {
    "action": "Update",
    "entityId": "10724789",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0c0f9f911a9eeef89a276fcc0d1f45bc2d9f034c500515f0edc1159ac0e64c46",
    "signature": "0x68ae75a2a870b1716de796cdff7ff29dd018ac4da079a5db9ad46a295a4b0e3e10c9a1196b2c99cd4ea58fdfdbc07318c2c12a1146c505c373d69cf20ef1679f1c",
    "signer": "0xa2cb59F34B214Ad2201cb8EA941F48ddd366142a",
    "userId": "10724789"
  }
}