{
  "manageEntity": {
    "action": "Update",
    "entityId": "674724902",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5fd3hycwa37olmuvxrletfjbmnltzf734loxed3gtsmbrtgo4giq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":431069960},{\"type\":\"playlist\",\"playlist_id\":158767467},{\"type\":\"playlist\",\"playlist_id\":523215880},{\"type\":\"playlist\",\"playlist_id\":665164207}]}}}",
    "nonce": "0xcf45b3307e76bcc5e25c4e6b72c248b32285895f1800ad45b99514fc1a324869",
    "signature": "0x148538bd0188d8d0aacc6ca20d78491202662a0fbcd551650d0a9c94839a401d6bf56f6feaab3a35b72171065341da558c9a6518bb9337d646ae2c6a94b736801b",
    "signer": "0xec1Fe7f623469C68eBB52525A42b86C0a36db1CA",
    "userId": "674724902"
  }
}