{
  "manageEntity": {
    "action": "Update",
    "entityId": "370952704",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xabf1dee1eea4fa0c06e4a7426268322c34121962a6d1415e155382a7509288d9",
    "signature": "0x7f6b8c6a0a729e57a647f9f1a5b519ffbe8adb71817f9e1d432883be3276a9ab6411931e97e45f9d136516c0294f783195fd9a3507c268f7e7a4a8f7e8f01ec71b",
    "signer": "0x6313d065d34f89f9FC6BF460347CF8c76085A4a4",
    "userId": "370952704"
  }
}