{
  "manageEntity": {
    "action": "Update",
    "entityId": "72445624",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x374cbd69c72f305c950a7ddb2423d5361054a16a1fd89a05408dfcef0e0c587d",
    "signature": "0xcb46b5f2f4b79d3c4be4eb069b10a35b956bbcb19123790f51ef75778897069706cefed9047f5f0c9e9dd26d96e9a925fa1440b73b3cd27c00302869dcf0efa31b",
    "signer": "0xC91E8F6417E0917e94e1d216f619958D90E1479d",
    "userId": "72445624"
  }
}