{
  "manageEntity": {
    "action": "Update",
    "entityId": "246798513",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x99a721cd6498c3c3c75302264223d75f68797fe22ba5f90632e643b7cfd47100",
    "signature": "0x38379451905a460ec7d298fa0ede5fee7ff6e3cfee2768860c5a140ba5b6601510fe3c56ff80342aaa588c1395ed905b57e52be3bf95ad3e1bb03d59c77c8d391c",
    "signer": "0x9fAa6E88B0d91248FEBA3b849ec2719677f342b2",
    "userId": "246798513"
  }
}