{
  "manageEntity": {
    "action": "Update",
    "entityId": "527464736",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x48651d95a3cd930b14962d41e36b8417e13754abbcc1b5ab02da918a9828e4ec",
    "signature": "0xc0ad6acf60a28daed1010cbd9b69d5358bec3bc38e0f1766ebc44d2a039f6c2d7c7376db6a417623b7ba9bde33092d587fb199b87be8efb94dd96b17b3273b3d1b",
    "signer": "0xD65e51a58F637B0530F62c9ac0343D730e4B964b",
    "userId": "527464736"
  }
}