{
  "manageEntity": {
    "action": "Update",
    "entityId": "787923601",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x61244c2f3eddc2e9a90b534b74f2dc5d074faca626fa72b191eb24a2a6022173",
    "signature": "0x9dbd67ef37d17be719c346e4cf9f82466e8a237f4d79906f7aabcede0fc084d80941ccbb433477aea7ff3db7b75701f72a87f935c56d80ecf2b5580b8cf8e3d41b",
    "signer": "0xcaC98489880506C0C92625ec414CD18dEE33d8b0",
    "userId": "787923601"
  }
}