{
  "manageEntity": {
    "action": "Update",
    "entityId": "886744869",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdf18f01b790511268dc560c67e4b4aa227925e05667ac50fc3f22927952ea830",
    "signature": "0x7e08cc648bbe341bcb4aec0109cc401ca8219d40d7525f4f75bdb194941c3e477efa91f05f0c20216c25490554303031b2f12490f101b016ec906dd703b2ac6d1c",
    "signer": "0xA25aAd0206917611edC6Fbdd1632e805d998f1FF",
    "userId": "886744869"
  }
}