{
  "manageEntity": {
    "action": "Update",
    "entityId": "463531545",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdfb54bbf60a68a85237644782b1495a457fbbfe909592b555e242f7f6c8764d7",
    "signature": "0xd9785127ce6a518f886360582dde34651c47b021d26c0ccc1c220cf0f3426c745e7bd1c1b208e4e5b2044392d934fa58551edd84a99b6ecb7075b24b2d7939841b",
    "signer": "0x93716e020f1e376Be9ec4fF785F3ad50ad2eF68d",
    "userId": "463531545"
  }
}