{
  "manageEntity": {
    "action": "Update",
    "entityId": "467398673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a6e3765b94619e3d884ca2dfabfba54ad30e5ec58d18d85c6f119e3d6d71894",
    "signature": "0x32bc7e12ab1afd276c284719d1172fae5aded30446905cc75a546feab6e08e153b1bbe8128656edb4b069f0811c0bb83448904aed2e075b2ea2813f8ba7c0f7e1c",
    "signer": "0x46CfB51Fda6B1829B8aF13F7d99133767B3F3b17",
    "userId": "467398673"
  }
}