{
  "manageEntity": {
    "action": "Update",
    "entityId": "945804525",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd0618509845801315a6bf74823db49c154efe8bf54657830a4c15f467b1f0eb1",
    "signature": "0xde51a4b2dabf6aeac81face1441c46b0fd257b976d6bb3b6721365cc3ec565150a9cbe5922087ffb7bca3df6f73009ea5da5ac6a170054b611ba8a8aecb37da51c",
    "signer": "0x8209874eC619BAb8540cFccC7bA75C5C54267b25",
    "userId": "945804525"
  }
}